Hey Xfinity forums,
I'm looking for help as to what I should try next in terms of my issues with internet access. It cuts out at least 2 to 3 times a day and usually a modem restart will get it back up and running. I have only one coaxial splitter inside the house and I have just recently bought a new Modem (SB6183) to try and fix the issue. I have the following Modem status, which seems like the power and SNR are way too low. I'm not sure what to try next. I hear that switching out the splitter could help, but I think there is something else going on since my power is so low.
|Acquire Downstream Channel||Locked|
|DOCSIS Network Access Enabled||
|Downstream Bonded Channels|
|Channel||Lock Status||Modulation||Channel ID||Frequency||Power||SNR||Corrected||Uncorrectables|
|1||Locked||QAM256||2||471000000 Hz||-22.7 dBmV||32.0 dB||5||0|
|2||Locked||unknown||1||465000000 Hz||-29.8 dBmV||0.0 dB||0||0|
|3||Locked||unknown||3||477000000 Hz||-25.7 dBmV||0.0 dB||0||0|
|4||Locked||unknown||4||483000000 Hz||-32.0 dBmV||0.0 dB||0||0|
|5||Locked||unknown||5||489000000 Hz||-27.3 dBmV||0.0 dB||65479||325269|
|6||Locked||unknown||6||495000000 Hz||-25.8 dBmV||0.0 dB||10540372||6235415|
|7||Locked||unknown||7||507000000 Hz||-29.8 dBmV||0.0 dB||0||0|
|8||Locked||QAM256||8||513000000 Hz||-26.6 dBmV||28.1 dB||2799569||13|
|9||Locked||unknown||9||519000000 Hz||-29.7 dBmV||0.0 dB||0||0|
|10||Locked||unknown||10||525000000 Hz||-29.7 dBmV||0.0 dB||63427||323541|
|11||Locked||unknown||11||531000000 Hz||-32.3 dBmV||0.0 dB||0||0|
|12||Locked||unknown||21||603000000 Hz||-47.3 dBmV||0.0 dB||0||0|
|13||Locked||unknown||27||633000000 Hz||-44.8 dBmV||0.0 dB||0||0|
|14||Locked||unknown||28||639000000 Hz||-38.9 dBmV||0.0 dB||14349||75467|
|15||Locked||unknown||29||645000000 Hz||-36.8 dBmV||0.0 dB||0||0|
|16||Locked||unknown||33||669000000 Hz||-51.1 dBmV||0.0 dB||17934||93368|
|Upstream Bonded Channels|
|Channel||Lock Status||US Channel Type||Channel ID||Symbol Rate||Frequency||Power|
|1||Locked||ATDMA||1||5120 Ksym/sec||36800000 Hz||54.0 dBmV|
|2||Locked||ATDMA||3||5120 Ksym/sec||24000000 Hz||54.0 dBmV|
|3||Locked||ATDMA||2||5120 Ksym/sec||30400000 Hz||51.5 dBmV|
Any suggestions would be appreciated.
Your connection is terrible. Stats are out of spec ! That can cause random disconnects, spontaneous re-booting of the modem, and speed and latency problems.
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.