What are the acceptable rate of corrected and uncorrected errors on this modem? I recently upgraded my tier and added this modem. I am getting the following which I assume are pretty high. I have no connection problems however, and speedtest reports correct speeds for my tier.
|Channel ID||Lock Status||Modulation||Frequency||Power||SNR/MER||Corrected||Uncorrectables|
|13||Locked||QAM256||507000000 Hz||-2.4 dBmV||40.4 dB||456||128|
|1||Locked||QAM256||429000000 Hz||-2.6 dBmV||40.1 dB||1712||758|
|2||Locked||QAM256||435000000 Hz||-3.1 dBmV||40.3 dB||2546||2130|
|3||Locked||QAM256||441000000 Hz||-3.6 dBmV||40.1 dB||2557||1800|
|4||Locked||QAM256||447000000 Hz||-3.2 dBmV||39.7 dB||1235||920|
|5||Locked||QAM256||453000000 Hz||-3.1 dBmV||39.3 dB||1106||998|
|6||Locked||QAM256||459000000 Hz||-2.7 dBmV||39.5 dB||835||835|
|7||Locked||QAM256||465000000 Hz||-2.4 dBmV||40.4 dB||706||690|
|8||Locked||QAM256||471000000 Hz||-2.8 dBmV||40.3 dB||956||769|
|9||Not Locked||Unknown||477000000 Hz||-2.9 dBmV||0.0 dB||62329359||11663346|
|10||Locked||QAM256||483000000 Hz||-3.1 dBmV||31.1 dB||1633005568||39850316|
|11||Locked||QAM256||489000000 Hz||-3.2 dBmV||36.0 dB||52825||29869|
|12||Locked||QAM256||495000000 Hz||-3.1 dBmV||38.5 dB||174045||11114|
|14||Not Locked||Unknown||513000000 Hz||-2.3 dBmV||0.0 dB||1988442646||403906668|
|15||Not Locked||Unknown||519000000 Hz||-2.4 dBmV||0.0 dB||1084694572||394751067|
|16||Not Locked||Unknown||525000000 Hz||-2.4 dBmV||0.0 dB||2305972502||757635029|
|17||Locked||QAM256||531000000 Hz||-2.5 dBmV||32.4 dB||403426809||82113511|
|18||Locked||QAM256||537000000 Hz||-1.9 dBmV||25.8 dB||501695393||190272875|
|19||Not Locked||Unknown||543000000 Hz||-2.2 dBmV||0.0 dB||1258026264||190823162|
|20||Locked||QAM256||549000000 Hz||-2.0 dBmV||33.4 dB||56136||104904|
|21||Locked||QAM256||555000000 Hz||-2.0 dBmV||38.6 dB||412||675|
|22||Locked||QAM256||561000000 Hz||-2.2 dBmV||40.0 dB||333||644|
|23||Locked||QAM256||567000000 Hz||-2.3 dBmV||31.4 dB||283609991||77892020|
|24||Locked||QAM256||573000000 Hz||-2.4 dBmV||28.3 dB||150314217||10112433|
|25||Locked||QAM256||579000000 Hz||-2.5 dBmV||33.3 dB||28255||24867|
|26||Locked||QAM256||585000000 Hz||-2.1 dBmV||40.3 dB||328||628|
|27||Locked||QAM256||591000000 Hz||-1.7 dBmV||40.6 dB||332||614|
|41||Locked||Other||690000000 Hz||-3.5 dBmV||21.8 dB||356948545||525|
|42||Not Locked||QAM256||0 Hz||0.0 dBmV||40.2 dB||4330||1790|
|43||Locked||QAM256||405000000 Hz||-4.6 dBmV||40.4 dB||2936||1197|
|44||Locked||QAM256||411000000 Hz||-4.0 dBmV||40.3 dB||2344||1376|
|45||Locked||QAM256||417000000 Hz||-3.5 dBmV||40.5 dB||1851||986|
|Channel||Channel ID||Lock Status||US Channel Type||Frequency||Width||Power|
|1||4||Locked||SC-QAM Upstream||16400000 Hz||6400000 Hz||50.0 dBmV|
|2||3||Locked||SC-QAM Upstream||22800000 Hz||6400000 Hz||50.0 dBmV|
|3||1||Locked||SC-QAM Upstream||35600000 Hz||6400000 Hz||49.0 dBmV|
|4||2||Locked||SC-QAM Upstream||29200000 Hz||6400000 Hz||50.0 dBmV|
|5||5||Locked||SC-QAM Upstream||39600000 Hz||1600000 Hz||49.0 dBmV|
Current System Time: Sat Aug 8 14:33:17 2020
Solved! Go to Solution.
You have signal problems with some of the downstream channels ! The SNR's are too low and there are too many uncorrected bit errors. The upstream power is also high side and it may be intermittently fluctuating even higher to out of spec levels. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.
In a self troubleshooting effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage types like GE, RadioShack, RCA, Philips, Leviton, Magnavox, and Rocketfish from big box stores like Home Depot, Lowes, Target, Wal-Mart etc. Splitters should be swapped with known to be good / new ones to test
If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two way splitter connected directly off of the drop from the street/pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed, and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.
Thanks for the insight. I just did a complete audit of the coax wiring in the house (I just recently moved in), and it is a big mess! I found 4 random splitters at various nooks and crannies with some cables leading to stripped open ends laying all over the attic! You may have saved me a lot of misery. It is amazing how I could still get service. I will deal with this mess and hopefully this will solve the issue.
Good luck with it ! Please post back with how things turn out.