I have that same issue. I've purchased several Routers, a new 3.1 cable modem (Arris Panaromic modem) but it still drops my connection right in the middle of gaming. This has caused several suspensions from multiplayer games and left a reputation that I leave during play. I get the same excuse on the phone that a technician needs to come look at the lines. Well I've had several technicians come to my house over the last 5 months. They all do something but I still suffer from disconnects. One technician said it was my router that was bad, but I just pulled it out of the box. Then he switched to maybe there is an issue beyond our house because the line from my modem to wherever tested good. I don't know what to do because Cox is the only one that can bring high-speed internet to my neighborhood.
I got to cable modem status page and I see the following items when I get a disconnect (Removed anything referencing a mac/HW address):
9-5-2018, 14:33:16 Warning(5) "Dynamic Range Window violation"
9-5-2018, 14:33:16 Warning(5) "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;"
9-5-2018, 14:33:15 Critical(3) "No Ranging Response received - T3 time-out;"
9-5-2018, 14:33:9 Notice(6) "DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 .;"
9-5-2018, 14:33:2 Notice(6) "TLV-11 - unrecognized OID;"
1-1-1970, 0:1:16 Warning(5) "DHCP WARNING - Non-critical field invalid in response ;"
1-1-1970, 0:1:14 Notice(6) "Honoring MDD; IP provisioning mode = IPv4"
1-1-1970, 0:0:55 Critical(3) "No Ranging Response received - T3 time-out;"
1-1-1970, 0:0:20 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;"
9-5-2018, 14:31:23 Critical(3) "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;"
9-5-2018, 14:31:7 Critical(3) "Unicast Ranging Received Abort Response - Re-initializing MAC;"
9-5-2018, 14:31:6 Critical(3) "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;"
9-5-2018, 14:29:23 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;"
9-5-2018, 14:0:11 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;"
9-5-2018, 12:25:40 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;"
9-5-2018, 12:11:1 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;"
9-5-2018, 11:45:43 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;"
9-5-2018, 11:9:53 Critical(3) "No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;"
1-1-1970, 0:0:20 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;"
1-1-1970, 0:7:37 Critical(3) "No Ranging Response received - T3 time-out;"
1-1-1970, 0:6:10 Critical(3) "No Ranging Response received - T3 time-out;"
1-1-1970, 0:4:46 Critical(3) "No Ranging Response received - T3 time-out;"
1-1-1970, 0:3:11 Critical(3) "No Ranging Response received - T3 time-out;"
1-1-1970, 0:1:49 Critical(3) "No Ranging Response received - T3 time-out;"
1-1-1970, 0:0:20 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;"
9-5-2018, 10:54:56 Critical(3) "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;"
9-5-2018, 10:54:51 Critical(3) "No Ranging Response received - T3 time-out;"
9-5-2018, 10:54:42 Critical(3) "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;"
9-5-2018, 10:52:57 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;"
9-5-2018, 10:30:3 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;"
9-5-2018, 6:10:27 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;"
