I have a purchased Arris SB8200. It's been working fine up until recently. Randomly, the cable modem will reset. I see the lights on the front of the modem go through the connection sequence (they are off, and slowly turn on green and one blue).
In reading others posts, I think I might have a line problem since the upstream power requested by comcast is out of spec for the modem. Arris' website states that for 3+ upstream connections, the power shouldn't be above 51 dBmV. There are currently 5 channels. The lowest is 49 dBmV and the highest is 52 dBmV.
The event log lists some problems. Here is a snippet.
04/21/2020 08:45
82000200
3
"No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:0f:f5;CMTS-MAC=00:b0:e1:72:fc:ee;CM-QOS=1.1;CM-VER=3.1;"
04/21/2020 08:45
84000500
3
"SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=2c:95:69:fc:0f:f5;CMTS-MAC=00:b0:e1:72:fc:ee;CM-QOS=1.1;CM-VER=3.1;"
04/21/2020 08:33
2436694061
5
"Dynamic Range Window violation"
04/21/2020 08:33
82001200
5
"RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=2c:95:69:fc:0f:f5;CMTS-MAC=00:b0:e1:72:fc:ee;CM-QOS=1.1;CM-VER=3.1;"
04/21/2020 08:33
82000200
3
"No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:0f:f5;CMTS-MAC=00:b0:e1:72:fc:ee;CM-QOS=1.1;CM-VER=3.1;"
04/21/2020 08:32
2436694061
5
"Dynamic Range Window violation"
04/21/2020 08:32
82001100
5
"RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=2c:95:69:fc:0f:f5;CMTS-MAC=00:b0:e1:72:fc:ee;CM-QOS=1.1;CM-VER=3.1;"
I contacted support and a technician cannot come out right now. Is there anything I can do? I don't have any splitters in the house. There are a couple installed on the outside of the house by comcast a while ago.
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