How many uncorrectables are acceptable. Sep 24, 2024 · Update after 12 hrs.

How many uncorrectables are acceptable Is this normal behavior? Mar 13, 2020 · The total bandwidth / speed capability depends on how many channels are bonded together. Solving Intermittent Cable Modem Issues (plus "loose/bad connectors" and other issues) Version 4. 0 to 3. … May 20, 2015 · My signals are fine, my speeds are fine, and my modem never resets itself. Oct 10, 2023 · CM1200 - Uncorrectables on every channel - Internet dropping every hour Hi Guys - Over the past 48 hours, our CM1200 has been losing internet access multiple times a day, sometimes once an hour. 1 status, and monitoring the changes in max uncorrectiable errors from each 30 minute report. I also replaced my aging modem with a new Arris SB8200 modem. Tech needed first, and then possible maintenance tech issue. This is the first step many technicians will take when sent out to your home to diagnose an internet connection issue. Contact your internet service provider to change the service from DOCSIS 3. Jan 28, 2020 · For uncorrectables, the key is to notice an issue and then monitor it. I have high correctables and 0 issues ever. It works by answering three questions: What percentage of defective items are acceptable? How many sample units should I inspect? How many defective items in the sample size are allowed? HI all! I recently moved into a new house with some roommates in Missoula Montana and set up Spectrum internet only. Here is a break down of transmit (T1-T6) errors. Any Criticals, Errors or Warnings seen in the event logs needs to be reviewed and resolved by the ISP. 1 Sep 28, 2025 · Losing packets over WiFi? Here's why this phenomenon occurs and how to fix it without having to switch to a wired connection. Sarcasticbrown Netgear cm3000 downstream blinking/not bonding, millions of uncorrectables, and I'm not receiving DOCSIS 3. Uncorrectable codeword errors in a DOCSIS network is a sure sign that a subscriber somewhere on your network is losing data. I have gig internet at home through cable in a development that was built less than a year ago. Apr 16, 2024 · Understand what is WiFi Packet Loss, and how you can test, and fix it. 1, there have been many questions about how to quantify downstream OFDM channel power. I am wondering if there is a wiring issue? There are 4 coax lines We would like to show you a description here but the site won’t allow us. I've switched hardware to a Netgear CM1200 and Netgear Router which is recommended by Sparklight (My That all sounded like good fixes, but I am still seeing the same high uncorrectables. You will have to deside for yourself what is acceptable to you. New modems, routers, and lines inside and outside house haven't helped. Is this a ISP issue? Occasionally the modem goes offline and requires a There's definitely and issue with the OFDM channel and is almost certainly something your ISP will need to help with. Post them for review. How much movement is enough? Jun 7, 2025 · How Many Call Outs Are Acceptable for Effective Design? Explore call out quantity rules and best practices to enhance your designs without causing visual clutter. The allowable settlement depends on many. If those uncorrectables are incrementing then you have an issue that could impact speeds. The line coming in to my home is only a year old, and the one that is spliced to it that runs in to my wall is only 6 months old. 4 MHz wide, 5. Feb 6, 2022 · Upstream 4 9 35. Be sure the ISP provisions the modem correctly. Cox probably considers a certain number of uncorrectables to be acceptable because no ISP can afford to keep all connections 100% perfect all the time. Apr 28, 2023 · The signal levels were actually in the acceptable range; however, performance was impacted by apparent signal gaps attributed to the defective cable drop. It's questions like yours which causes Spectrum and other providers to lock out these Aug 31, 2023 · show interface ofdma 12/1. I called optimum and they said everything looks fine on their end. 1 always looks high due to the nature of how the signal is multiplexed. Wired connection, even though there's a splitter - it is reproducible without it. 0 (ATDMA) 5120 kSym/s 64QAM ive heard the uncorrectables tab is for packet loss and it does have some numbers on that line but i dont really know much about this stuff so why would it show any thing on that line my router is a netgear r7000 my modum is a arris 822tm Oct 22, 2014 · There are uncorrectables across all channels. If it’s accumulating 100s or even 1000 in short time span, up to a day, that could be the indicator of an issue. This was apparently done sometime this week as our packet loss issues are resolved and the speed is acceptable. Generally 4000- 5,500 on each. Logging into the modem page (~1yr old Surfboard SB8200 refurb), I'm assuming the high number of uncorrectables is the source of all the issues, but is this indicative of a faulty modem, router, or internet service? Does anyone know what next steps I should pursue to get this solved? Thanks in advance! According to my Nighthawk CAX80’s Cable Diagnostic, my downstream power is poor and there’s (seemingly) high SNR across almost every channel, and there seems to be a large amount of uncorrectables built up on channels 28-31. 1 Since the led light status is green, the modem is activated under DOCSIS 3. Wolf Paulus is software engineer, innovator and educator based in Sedona, Arizona. Also, check the manual for your modem which should offer advice on what is normal. You definitely have issues in the coax somewhere that is causing the uncorrected errors. Jul 2, 2007 · Your downstream power levels are kind of high, ideally you want them at 0 though -10 to +10 is acceptable, while your upstream is kind of low, these should be +40 to +52. Keep on having technicians out Modem stats page shows the huge number of correctables (like in millions after 5 minutes after modem reboot) and large number of uncorrectables (in hundred thousand) for certain frequencies. Post what your stats are such as jitter, latency, and how many late packets and lost packets. My SNR and power levels are all well within acceptable ranges and I bond to all 4 channels upstream. I wouldn't have noticed the change but my connection has dropped intermittently several times in the last week. Nov 19, 2021 · Hello, I recently bought a CM1000 and have it hooked to an Orbi router with satellite. Jul 9, 2021 · Large number of uncorrectables Arris sb8200 modem, 1200 mbps service - Up until recently (about a week now), my correctables and uncorrectables were always close to zero. I had a similar issue with uncorrectables and a faulty splitter or normal signal degradation caused by it was causing the issue for me. The upstream power is also high side and it may be intermittently fluctuating even higher to out of spec levels. Per-Modem FEC Counters Jun 7, 2025 · How Many Call Outs Are Acceptable for Effective Design? Explore call out quantity rules and best practices to enhance your designs without causing visual clutter. Reed Solomon FEC (RS-FEC) G. Like for example, would netgear have different acceptable ranges for power vs a motorola. I ended up removing the splitter and connected using coax + 6 dB attenuator. 0 and blue indicates DOCSIS 3. Today (<24 hours following reboot) each DS channel has 100 - 4,000 UnCorrectables. 46 dBmV 38. Jun 5, 2018 · correctables number is fine. I attached my Arris status report. Additionally, the number of uncorrectables on the modem starts out and stays low for about a day but then exponentially grows. The recommended best practice for voice-over-IP (VoIP) is to avoid exceeding 1% uncorrectable codeword errors. This is easily reproduceable. 3 dBmV. The ratio R = k / n is called the code rate. Restarting the CM1200 brings back access, but it's very bothersome and much worse than it's ever been before. In the evening, speeds go down to around 5 Mbps or below but are supposed to be 75 mbps. Can anyone see any issues here? Arris In fact this is one reason for using raid in the first place. Below I've listed what are considered acceptable power levels for Xfinity. The downstream bonded channels are all QAM256, while the upstream channels are SC-QAM. I've switched hardware to a Netgear CM1200 and Netgear Router which is recommended by Sparklight (My Apr 3, 2022 · CM700 Internet Dropping and High UnCorrectables My internet cuts out for about 15 seconds once every 20 minutes. We would like to show you a description here but the site won’t allow us. Sep 17, 2012 · DOCSIS codeword errors and uncorrectable codeword errors have been available as a troubleshooting aid in CMTSs for sometime and are not becoming more prevalent in test equipment. The latency has jumped a little, but streaming is mostly ok. If not then you should be fine Sep 15, 2020 · But if uncorrectables are growing and growing, your connection is no good. 91 dBmV 38. 3bj RS-FEC standard specifies either 5440 or 5280 bits per Block, it is possible to save 10 or more RS-FEC Blocks in one Capture Block (65536 bits). Took a look at my cable modem and noticed over 300,000 uncorrectables on CH. Packet loss testing Using Ping 1. That will kind of lend credence to the last three channels are odd looking but fine if the packet loss is near zero. 21mbps to 200mbps Signal, running 10 mins: DCID Freq Power SNR Modulation Octets Correcteds Uncorrectables Downstream 1 20 699. 1 Correctables - Or CRC errors - Aren't necessarily bad; your modem will inevitably have some error'd bits it needs to correct, and, it has 0 "uncorrectables" which means that all of the errors were corrected. . Tech hooked up his meter and I pinged the modem in it all was good. The redundant bits Nov 7, 2024 · There are many ways to run an internet quality test. -3. Is Cox's interpretation of Internet speed how fast you can resend packets because of your inability to send undamaged ones in the first place? Mar 7, 2025 · Correctables and un-correctables should be zeros. structure and it usually includes a factor of safety. 6 40. when the connection drops in the event logs I am seeing "SW May 28, 2008 · I pulled the uncorrectables from the mib browser and saw that this one modem had 77,387 uncorrectables and ping the modem was getting response times ranging from 1200ms to 1600ms. These errors, which cannot be corrected by the system’s error-correction algorithms, are known as uncorrectable codewords. 1 dBmV. I have spent a considerable amount of time troubleshooting with minimal success. Uncorrectables and correctables were 0 across the board about 30 Modem: arris tm822g Issue: Very intermittent speed, fluctuating between 0. The cable tech came out today and said that the problem was that our cable to the pedestal was bad and replaced it with a new cable. The easiest way to identify this channel is that the modulation type will be displayed as “other”. 120 MSym/sec downstream cable channel supports a raw data rate of approximately 43 Mbps, and a real world throughput of approximately 38. Like you said, higher accumulation of uncorrectables are where a problem indicator comes into play. The problem is truly solved. I probably won't be jumping to replace the router immediately but maybe within a month or two. Generally nothing, but a few thousand now and then is fine. The speeds were similar. Correctable errors are normal on OFDM, but uncorrectable are not good. I have had no previous problems for the 2 years I have owned the CM700 modem and Nighthawk 7800 combo. 7 37. The frequency and occurrence of uncorrectable codeword errors can signal physical or network impairments that adversely affect a What amount of Correctables/UnCorrectables is acceptable? I have been experiencing periodic drops of service multiple times a day for the past three weeks. A current, single 256 QAM modulated, 6. I contact comcast and finally got them to send a tech, who removed a splitter from outside of the Two xfinity calls and 4 new coaxial cables later I'm still having issues with downstream power ramping up and lowest channel uncorrectables. I have reset the modem and changed the coax cable. 6 41. The encoder for a block code divides the information sequence u into message blocks of k information bits (symbols) each and transforms each message u independently into a codeword, n -bit (symbols) v. IMO, the only time it's acceptable to call someone more than twice in a day with no response is if it's an emergency. 1. It happens randomly, sometimes it's good (0 correctables 0 uncorrectables) or it's all over the place. 1 PHY spec”) includes details about CMTS downstream transmit signal fidelity and power. I pay for 1gig plan. So I thought it was an issue with the modem, so I returned the S33 modem and got a new S33 modem. The power levels for the downstream channels are in the range of 2. 168. You can learn a bit about my connection from these signals. 26 dB 256QAM 124143486 0 0 Downstream 2 21 705. 6 38. I haven't yet seen my internet drop, but it's not been a full work day yet. Ideally, you should have 0 uncorrectables but a few here and there are ok. - Here is my Question - I am thinking about installing the original splitter (still in good condition physically, assuming electrically as well) and seeing if the 3. Advise the customer to upgrade their service 10 / 20 10. 1%), and the OFDM channel for DOCSIS 3. Aug 8, 2020 · You have signal problems with some of the downstream channels ! The SNR's are too low and there are too many uncorrected bit errors. I have been having issues with voice chats going in and out on apps like discord and teams. 1 Physical Layer Specification [1] (“DOCSIS 3. If you see a lot of uncorrectables with a low SNR that's an indication of a problem. The raw number of uncorrectables is irrelevant. 4a (updated September 16, 2023) Jan 1, 2023 · I've called out 7 different tech groups first few were just single people and now there bringing out multiple techs when ever I make a call and this has been happening for about 2 months now. Have the ISP check the signal and line quality UP to the modem. Indicates a signal issue on the ISP line up to the modem. After some configuration of the Orbi, I was getting great speeds for what I'm paying for (700Mbps wired, 300 wireless, and I'm paying for 600). What actual issue are you having aside from seeing numbers on your modem? Profile A (256-QAM) is showing pretty high levels of correctables (C CWE) as well, but zero uncorrectables. 9 11 0 2 Locked QAM256 1 387000000 Hz 3. Even when I have slow dl speeds, my ul speeds stay between 35-40 Mbps Sep 24, 2024 · Update after 12 hrs. This is from an Arris S33. 16 and over 10,000 on CH. Finally did bring your own Modem - many corrected and uncorrected errors. Dec 15, 2022 · In looking at the Downstream Bonded Channels page on the webmanager, I see many thousands of Corrected & Uncorrectable errors on every channel. 1 Mbps. The modem used to bond to all 4 channels, now it only bonds to 2 channels. My DS varies from +5 - +9 and the lowest channel is always lower SNR and within hours has 2-4x more uncorrectables than corrected. And the channel #19 will jump back to ~37. Others allow a few per year of lifetime. Mar 7, 2025 · Correctables & Uncorrectables high Downstream Bonded Channels Channel Locked Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables 11 Locked QAM 256 11 345000000 Hz 9. However, I noticed for the past week I’ve been getting 30mb with outages here and there. Low download, mid-upload. A few weeks ago, (possibly coincidentally) the same time everyone started working from home due to the pandamic, I have been having issues with my internet - especially gaming. 5 . All other modems were around 16ms to 30ms. This lasted for a couple days, but then I noticed extremely slow speeds (40 - 60Mbps wired, 20 - 30 wireless), constantly dropped connections, and difficulty in even Oct 29, 2023 · CM2000 Amount of 'acceptable' Uncorrectables? Hello yall, Ive checked through and cannot seem to find anything regarding this, but if its been asked/answered please forward along Nov 18, 2019 · Been having high correctables and uncorrectables looking for answers to why it is happening and how to fix it&nbsp;&nbsp; s33 drops internet several times a day and huge number of Uncorrectables 1 year ago 14 replies 580 views M I recently received text messages that Comcast would be working in my area, and then saw people working in the utility boxes on our street. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels. If not then you should be fine Hey there DOCSIS people, I've got a question for you. Note: DOCSIS 3. Since the introduction of DOCSIS 3. If you have internet only and only have a modem there is no need to a unity gain amp. Hi there all. The support person said they boosted the signal. Jul 1, 2019 · Types of FEC codes Two structurally different types of codes are in common use today: block codes and convolutional codes. The information provided by my modem after an uptime of a little more than 7 days doesn't look all that great, but for my ISP it's probably more than acceptable. I've been having days during the week where it drops to 1-2 Mpbs. Tried calling, typical answer: change modem. Yet I still get around 15,000 uncorrectables a day, every day. I rebooted our modem to establish a clear session and fresh logs and I'm still May 19, 2014 · However, I am having an issue with downstream channel bonding. But to me, uncorrectables are never acceptable. As a result, more than acceptable correctable errors per codeword can occur in links when using a DFE. Hey guy I’ve had the Arris Sb8200 for about a year now. 2 after only 2 hours of uptime. Jul 15, 2023 · Acceptable Quality Limit (AQL) is a quality control procedure used to ensure that goods manufactured and received meet the agreed upon quality standards. Selecting the smallest possible value at Number of Block (Figure 2. My speed varies from 700-980 (it's connected to a GB port so I don't expect to get the full 1200). 0 cable modems always tally up correctable & uncorrectable errors for *all* downstream traffic on a channel, whether or not the errored frames Unity Gain Amp? Do you have a lot of equipment? Unity gains can amplify problems if there are issues in the line. Downstream Bonded Channels Channel LockedStatus Modulation ChannelID Frequency Power SNR Correctables Uncorrectables 1 Locked QAM256 4 405000000 Hz 3. Why do Uncorrectables impact video streaming more than Correctables? A. Curious on the amount of equipment you have hooked up around your house. I contacted xfinity and they did something on their end, but it did not work. 0. Feb 25, 2021 · I logged into our Arris SB6190 modem and noticed that uncorrectables are 10x correctables. Most of the time this happens during the initial boot up while it is syncing, it's just bound to happen. Signal levels on this modem were -2 and 43 I believe. 00 MHz 6. Some people keep their phones on a do not disturb setting some times of the day and calling a third time will often overrule this setting and make the phone actually ring. Sep 6, 2021 · I logged into my modem status page and saw I was having a lot of errors in the log and high number of uncorrectables on all my Downstream Bonded Channels. Following the change this issue seems to be corrected. You can either go for online packet loss tester such as PingPlotter, Wireshark, and more. I will take your suggestion into consideration, my buddy has an ASUS as well. Recent months it has been especially bad. 98 dB 256QAM 216759457 0 0 Downstream 4 Aug 18, 2025 · Learn what percentage of AI writing is considered acceptable, how detectors like Turnitin and Originality AI set thresholds, and how to stay safe in 2025. It asks how many unexcused absences are appropriate over a year in my opinion. 1 Reed-Solomon FEC environment this would be a big concern, because having so many correctable codeword errors is usually an indicator that uncorrectable codeword errors are immediately upon us. It's normal for the OFDM channel to show huge numbers. The screenshot attached was taken a few minutes ago The uncorrectables are insane. • Downstream Power Level: -10dBmV to +10dBmV is acceptable for modems. The errors increase available bandwidth for Jun 1, 2018 · In a pre-DOCSIS 3. The changing of profiles is basically your modem switching to a lower modulation level (trying to cram less data in the same spectrum because there's too much noise or too low of signal to go at full rate Following the change this issue seems to be corrected. The power levels for the upstream channels are in the range of 47. 8 2737 774 4 Locked QAM256 3 399000000 Hz 3. OFDM is incredibly robust and runs on tons of correctable errors. 50 MHz 33. If All of them are at 5-6 dBmV power and 41-42 dB SNR, 0 corrected or uncorrectables, except for channel 48 (OFDM PLC) which is at 4 dBmV and has hundreds of thousands of corrected quite quickly. That amount of uncorrectables over the course of 29 days is nothing to worry about if you aren't seeing connection issues. I am noticing a really high "corrected" count on channel 159, which is the only one that uses OFDM PLC modulation. Jan 2, 2015 · Forum discussion: Could someone confirm that DOCSIS 3. Should I be worried about the number of correctable code words on channel 1 and 32? Other channels have Uncorrectable Codewords than seem unusually high, too. The uncorrectables for the QAM channels have to be compared to the total number of octets sent to be understood (and trust me, it's going to be something like less than 0. We can see similar events for the next codeword pointer (NCP) and the PHY link channel (PLC) profiles, which are both running at 16-QAM. It’s normal for the OFDM channel to have correctables and uncorrectables, it is not a cause for concern. It takes only one or two minutes to run a packet loss test. many cycles show no changes, but others have what look like large jumps. 26 dB 256QAM 232096821 0 0 Downstream 3 22 711. Nov 22, 2023 · Is it one, two, three, or more channels? It says in the article the Downstream Bonded Channels section, the Power levels of - 15 dBmV to + 15 dBmV are within the acceptable range for each downstream channel. Discover the balance between highlighting key benefits and maintaining a clean layout. 709 defines Reed Solomon FEC (RS-FEC) for modern Optical Transport Network (OTN) systems. Docsis 3. When I had this set up with the old router, the uncorrectables were in the 200s in the bottom chunk. Take some time to consider/research. For uncorrectables, the key is to notice an issue and then monitor it. 5dB Nov 28, 2021 · I ran crystal disk and got 688 pending and uncorrectable sector count. Jan 1, 2023 · I've called out 7 different tech groups first few were just single people and now there bringing out multiple techs when ever I make a call and this has been happening for about 2 months now. First, I watch this over time, perhaps daily to get a feel for what is normal for your connection. Streaming services can self-correct errors better than DOCSIS C. Is this issue isolated to your iPhone, and have you tried troubleshooting your Xfinity internet using the Xfinity App? We would like to show you a description here but the site won’t allow us. Dec 27, 2024 · C. The size of a CW is determined by the modulation profile. Many consumer-grade PCs have hardware limitations that prevent them from testing up to 1 Gbps. Tried chat, still no one capable of understating. 0 stat in the output you are looking at the uncorrectable count, which shows on this OFDMA channel how many uncorrectables there are If you find a channel with disproportional uFec > 0. The DOCSIS 3. I've seen only a few dozen uncorrectables where before I would get bursts of thousands, and would notice significant "hitches" in my internet connection. I gathered that that high of a number of uncorrectables isn’t good, but could grounding the splitter really have fixed whatever was wrong with the signal? Tl;dr internet at my house crashes a lot and has high number of uncorrectables when I log into the netgear modem interface online. Reset the modem and recheck D. 1 First thing to check is if your signal levels are within spec. >> SCOTT: If you're getting 1 or 2% correctable codeword errors on a consistent basis or in spikes over the course of a conversation, then yes, you're probably going to hear like a hesitation or a clicking noise in the conversation. The easiest way to test packet loss is through internal commands on Windows or Mac. -7dBmV to +7dBmV is the ideal range and is also the specified range for telephony modems. 5 40. Does anyone know why I have so many uncorrectables on these channels? I recently purchased and installed an Arris SB8200 cable modem in my house. Netflix was a little slow filling the buffer last night. Also Nothing important. 2) with a large Capture Memory Size increases the number of RS-FEC Blocks that can be captured at one time. (*Currently having issues with uncorrectables, or at least that's what (level 1 & 2) phone support tells me is my only problem. I've mentioned SNR jumping up and down by large amounts to them before, but I keep getting told "Your signal levels look fine". See below. The Uncorrectables on Channel 1 are at 65M (from 21M last night). Nov 8, 2020 · Hey, For years I have had isp issues with my cable internet. I mean it does work and is giving acceptable speeds but obviously I'd like to take more advantage of my full speed. Problems like outdated hardware, radio interference, ethernet cable can cause this. Dozens of tech visits haven't Oct 4, 2005 · Note: Uncorrectables plus unerroreds plus correcteds equal the total number of codewords (CWs; also known as FEC data blocks) received on this US, including all CWs, whether or not they were part of frames destined for the CMTS. 3 2094 2516 From the Cable Diagnostics I see Uncorrectables, for an example channel, as 2516. These packets are getting fixed at modem. My internet subscription is supposed to be "up to 1200 Mbps". 5dB attenuation will help. Signals are fine. 1 modems utilize a channel known as the OFDM channel. Oct 27, 2023 · SB8200 is compatible with DOCSIS 3. In that 2nd pic, the massive uncorrectables are right in the LTE band. Video streaming can only tolerate minimal data loss before frame drops B. It only takes a couple of errors to result in a burst of output errors that overload the Reed-Solomon decoder. There are different viewpoints on how many failed sectors are too many to trust the drive. Tried unconnecting reconnecting coax cable into the router, tried rebooting router 100000s of times. 1 it’s okay to have very high levels of correctable codeword errors as long as uncorrectable codewords are non-existent or less than 1%. 98 dB 256QAM 216759457 0 0 Downstream 4 Oct 22, 2014 · There are uncorrectables across all channels. Green led light indicates DOCSIS 3. Jun 20, 2024 · Can someone answer the question: Do uncorrectables matter if the download/upload speeds are at specifcation? The uncorrectables have jumped in the last two days, but 3rd party speed test shows my speed/jitter at acceptable levels. It's highly unlikely that you would have this many downstream channels with only one single upstream channel, that would be something like 800 or gigabit down and 2 -5 up and it's not a service Comcast offers. This is literally the only device connected to our main cable Your SNR is great, as are your power levels. Jun 25, 2018 · In fact, when I first started scrubbing HMDA file years ago, I had a very difficult time gaging how many HMDA errors were acceptable before a resubmission would be required, or worse - before a civil money penalty (CMP) would be assessed. Having a device that can test both the DOCSIS layer and Ethernet layer to 1 Gbps helps distinguish between service problems and equipment problems. Is this bad? Apr 5, 2020 · So I took a screenshot of this to reference. 0 Modem and I don’t think what the status window is showing me is what I should be seeing. Since then, my Motorola MB8611 was rebooting itself every couple of hours, with a few errors and a high number of non-correctable errors on the OFDM channel. Mar 23, 2025 · What is acceptable settlement? The allowable settlement is defined as the acceptable amount of settlement of the. The first comcast tech I talked I informed him that I recently installed the cable modem and my connection dropped every few hours. There are 5 channels not locked and two with large uncorrectables. I have a R7000 router with DD-WRT installed on it :) The modem however was given to us by Spectrum for free. Mar 15, 2018 · I'm getting a large amount of correctable and uncorrectables errors in the log. 01% which makes it a non-issue. 100. Even if one of the tons of sub carriers are low on SNR it won't impact it. Feb 3, 2023 · Spectrum recently came out and re-ran a line somewhere. What are CCER errors? Turning off the modem and waiting for 20 minutes will reset the errors (as expected), and they stop going up for a few hours (1-20 uncorrectables per hour). The changing of profiles is basically your modem switching to a lower modulation level (trying to cram less data in the same spectrum because there's too much noise or too low of signal to go at full rate Jul 9, 2023 · Multiple T3 Timeouts a Day, internet is unusable for gaming or use that requires consistent connection We would like to show you a description here but the site won’t allow us. Over the years FEC has continued to be developed to the point now where many errored bits in a long stream of data can be successfully detected and corrected at the receiver, without the need to have the data retransmitted. We've been having problems for the last few days with our ISP where we were getting uncorrected words across all of our channels. I am getting event code 16 and event code 24 about 6 times an hour in the event logs. This is usually a symptom of degrading or underperforming hardware or another problem. 50. 1 Solved I just bought a new SB8200 to replace my DOCSIS 3. Corrected errors are all right and part of the process. It really depends on how many and how close together they occur. If you post your logs, be sure to scrub any MAC address from it for privacy reasons. Alright and here is the copied table that I took from my CM1200 modem status page. • Downstream Signal to Noise Ratio (SNR): This number should be at least 35dB. Some say no failed sectors should be allowed. And all those uncorrectables may have been accumulated during maintenance or similar. 90 dBmV 38. Mar 8, 2021 · Seeing OFDM uncorrectables and low upstream power levels on new modem My new Arris S33 modem seems to be performing fine after just a few days of uptime (I can reach gigabit speeds down), but if I look at the connection status page I see some uncorrectables for the OFDM channel and maybe the upstream power levels are low? Is it acceptable to have as many uncorrectable codewords as possible? Uncorrectable errors are more of a source of concern because they result in data loss. I have called xfinity support twice now. Currently having latency spikes, packet loss and a high number of uncorrectable errors on the Netgear CM1150v. high uncorrectables are problem but you dont have it. Over the last year, I've noticed I have to restart my modem every other week and sometimes once a week as it quits responding. It's likely the number is below 0. 54 dBmV DOCSIS2. When the modem was new, it was always bonded to 4 channels, and it started only bonding to 2 and occasionally bonding to a 3rd every once in awhile but Study with Quizlet and memorize flashcards containing terms like WHAT IS THE AFINION HbA1C TEST'S MEASURING RANGE?, WHAT ARE ACCEPTABLE SAMPLE TYPES FOR THE AFINION™ HbA1C ASSAY?, FOR HOW LONG ARE AFINION™ HbA1 C CONTROLS STABLE FOR ONCE THE VIALS ARE OPENED? and more. Not so in DOCSIS 3. Jul 21, 2020 · What are Correctables and Uncorrectables? Correctables are errors the modem was able to correct. Since the IEEE802. If asked in a job interview, "How many unexcused absences do you think are is acceptable over a year?" how should I answer? An online profile is required to apply for a job I'm interested in. Higher is better. Uncorrectables are packet loss. 100mbps plan. 5 69579976 65815623 3 Locked QAM256 2 393000000 Hz 3. May 6, 2025 · Again, let’s reinforce: in DOCSIS 3. : r/Comcast_Xfinity Aug 18, 2023 · I'm looking for some direction with High Corrected OFDM PLC Errors. 1% you can dive deeper into what is causing it by first seeing what portions (minislots) of the channel the uFec is occurring: Jun 6, 2024 · In our DOCSIS networks, accurately calculating uncorrectable codeword errors is essential for monitoring and maintaining network integrity. Forum discussion: For some reason, my Arris TM3402A has an excessive amount of uncorrecables. After installing I noticed that my internet connection would drop every few hours. 7 . factors, including the following: 1. Mar 28, 2025 · From time to time, modem signal levels can become out of specs. Every inch of cable and fiber and the headend even is brand new less than a year old. If you see new errors, it's typically an indication of noise. All this leads to connection disconnects that last anywhere from 10 seconds to a minute. My power and SNR readings were within spec according to the manufacturer but apparently the modem was just being really sensitive/ needed tighter tolerances than what the manufacturer had recommended. I have noticed channel 1 is having tons of issues can anyone give me some insight as to what might be going on? What is channel 1 even used for and why is it having so many issues? Is Have a script and spreadsheet that have been monitoring status for last 24 hours that gets the data form the 192. Divide the number of uncorrectables by the total number of octets. On the front of the modem, the second light from the top is blue and the Large number of uncorrectables on one channel Hi everyone, We had a service call scheduled last Saturday that ended up (supposedly) calling for someone to check our tap. ywi vokfkk fcjw mqshwzlqa fuqqlk xscppxw uaxhfd jlrnw bxirc fud grqa glkg zdtov gobdv uiupwyd