reply to r8er4ever
Re: SMC3GN Someone needs to start looking further back from a node or upstream perspective based on your logs.
The T3 indicates that the modem is not receiving a RNG-RSP from the CMTS and if its not receiving one, there is a good chance the CMTS is not receiving the modems RNG-REQ when it solicits its SID during the station maintenance interval. If this is happening, the CMTS should a good amount of misses and flaps if its looked at. More than likely the issue is effecting the feeder segment or whole node itself.
The MDD indicates that the modem is actually dropping the MAC Domain Descriptor used in DOCSIS 3.0 channel bonding. Normally if the modem drops one or all of its non primary RF channels used in bonding it wont force it to reboot or reinitialize its MAC layer and they will be corrected during a RNG-RSP interval from the CMTS. In your case, the RF was bad enough for the CMTS to force the modem to reinitialize its MAC layer.(Reboot)
You need tech support or a local Charter tech to investigate the upstream port from the CMTS. They will need to investigate the flap counts, station maintenance exhaust & abort info.
Hope this helps