Mediacom installed the cable to my modem themselves. It's an unbroken line (well, there might be a grounding block) from the cable riser in the corner of my yard, buried along my property line. It then comes in through the wall of my garage right to my modem.
FYI, I can see in my modem logs that when I have a drop event, it tries to reset itself. I wonder if the issue has to do with the new usage metering. I've been having this issue for a few months now, but I chalked it up to my wireless connection until I recently moved my PC to a wired connection and I'm still getting the same issue.
The log below shows the activity during my most recent drop event. Which coincidentally happened while I was typing up a response saying I didn't think the issue was with my router.
I did not touch my modem at all during the time of the events in this log.
Time Priority Code Message
121009152613 4-Error DIST: Management Message with unidentified Version->4.
121009152611 4-Error DIST: Management Message with unidentified Version->4.
121009152611 7-Information SNMP: Working in SNMP V1/2c Only NmAccess mode
121009152611 7-Information INITIALIZATION COMPLETE - MODEM IS OPERATIONAL
121009152611 7-Information 7 I500.0 Registration Completed
121009152611 6-Notice I401.0 TLV-11 - unrecognized OID
121009152611 7-Information SEC: Co-Signer CVC from configuration file was verified
121009152610 7-Information REGISTRATION COMPLETE - Waiting for Operational status
121009152609 4-Error DIST: Management Message with unidentified Version->4.
121009152609 7-Information 7 D509.0 Retrieved TFTP Config SUCCESS
121009152609 7-Information Registration file - downloaded
121009152608 7-Information Trying to download Configuration file ...
121009152608 7-Information 7 D507.0 Retrieved Time....... SUCCESS
121009152608 7-Information Time of day - retrieved
121009152607 7-Information 7 D511.0 Retrieved DHCP .......... SUCCESS
121009152607 7-Information DHCP - parameters acquired
121009152607 5-Warning D03.0 DHCP WARNING - Non-critical field invalid in response
121009152607 5-Warning DHCP: Missing Syslog server
121009152607 4-Error DIST: Management Message with unidentified Version->4.
121009152605 4-Error DIST: Management Message with unidentified Version->4.
121009152603 4-Error DIST: Management Message with unidentified Version->4.
121009152602 7-Information 7 T500.0 Acquired Upstream .......... SUCCESS
121009152602 7-Information Trying to register through CMTS...
121009152602 7-Information SYNCHRONIZED - 111000000 Hz , ucd 2
121009152601 4-Error DIST: Management Message with unidentified Version->4.
121009152559 4-Error DIST: Management Message with unidentified Version->4.
121009152557 4-Error DIST: Management Message with unidentified Version->4.
121009152556 3-Critical R02.0 No Ranging Response received - T3 time-out
121009152555 3-Critical R02.0 No Ranging Response received - T3 time-out
121009152555 4-Error DIST: Management Message with unidentified Version->4.
121009152554 7-Information Starting Ranging On Channel 2
121009152553 4-Error DIST: Management Message with unidentified Version->4.
121009152551 4-Error DIST: Management Message with unidentified Version->4.
121009152550 7-Information Downstream Locked - Collecting Upstream Information
121009152550 7-Information 7 T501.0 Acquired Downstream (111000000 Hz)........ SUCCESS
121009152549 4-Error DIST: Management Message with unidentified Version->4.
121009152548 7-Information Scanning frequency 111000000Hz
121009152548 3-Critical U02.0 UCD invalid or channel unusable
121009152547 4-Error DIST: Management Message with unidentified Version->4.
121009152545 7-Information Starting Ranging On Channel 2
121009152545 4-Error DIST: Management Message with unidentified Version->4.
121009152545 7-Information Downstream Locked - Collecting Upstream Information
121009152545 7-Information 7 T501.0 Acquired Downstream (123000000 Hz)........ SUCCESS
121009152543 4-Error DIST: Management Message with unidentified Version->4.
121009152543 7-Information Tuning to frequency 123000000Hz, (us 2 mode 4)
121009152543 7-Information Trying to synchronize ...
121009152543 7-Information Dynamic Channel Change Re-Init MAC Requested - New DS freq: 123000000, New US channel: 2
121009152543 3-Critical C206.0 DCC aborted unable to communicate on new upstream channel
121009152543 3-Critical R04.0 Received Response to Broadcast Maintenance Request, but no Unicast Maintenance opportunities received - T4 timeout
121009152541 4-Error DIST: Management Message with unidentified Version->4.
121009152539 4-Error DIST: Management Message with unidentified Version->4.
121009152537 4-Error DIST: Management Message with unidentified Version->4.
121009152535 4-Error DIST: Management Message with unidentified Version->4.
121009152533 4-Error DIST: Management Message with unidentified Version->4.
121009152531 4-Error DIST: Management Message with unidentified Version->4.
121009152529 4-Error DIST: Management Message with unidentified Version->4.
121009152527 4-Error DIST: Management Message with unidentified Version->4.
121009152525 4-Error DIST: Management Message with unidentified Version->4.
121009152523 4-Error DIST: Management Message with unidentified Version->4.
121009152521 4-Error DIST: Management Message with unidentified Version->4.
121009152519 4-Error DIST: Management Message with unidentified Version->4.
121009152517 4-Error DIST: Management Message with unidentified Version->4.
121009152515 4-Error DIST: Management Message with unidentified Version->4.
121009152513 4-Error DIST: Management Message with unidentified Version->4.
121009152513 3-Critical R02.0 No Ranging Response received - T3 time-out
121009152512 3-Critical R02.0 No Ranging Response received - T3 time-out
121009152511 4-Error DIST: Management Message with unidentified Version->4.
121009152509 4-Error DIST: Management Message with unidentified Version->4.
121009152509 3-Critical R02.0 No Ranging Response received - T3 time-out
121009152507 4-Error DIST: Management Message with unidentified Version->4.
121009152506 3-Critical R02.0 No Ranging Response received - T3 time-out
121009152505 4-Error DIST: Management Message with unidentified Version->4.
121009152504 3-Critical R02.0 No Ranging Response received - T3 time-out
121009152503 3-Critical R02.0 No Ranging Response received - T3 time-out
121009152503 4-Error DIST: Management Message with unidentified Version->4.
121009152502 3-Critical R02.0 No Ranging Response received - T3 time-out
121009152502 7-Information 7 T500.0 Acquired Upstream .......... SUCCESS
121009152501 3-Critical R02.0 No Ranging Response received - T3 time-out
121009152501 7-Information Channel Change Complete - Enabling Bridge
121009152501 4-Error C401.0 DCC-ACK not received
121009152501 4-Error DIST: Management Message with unidentified Version->4.
121009152501 7-Information C203.0 DCC arrive new
121009152501 7-Information C203.0 DCC arrive new
121009152500 7-Information C203.0 DCC arrive new
121009152500 7-Information C203.0 DCC arrive new
121009152459 3-Critical R05.0 Started Unicast Maintenance Ranging - No Response received - T3 time-out
121009152459 4-Error DIST: Management Message with unidentified Version->4.
121009152458 3-Critical R05.0 Started Unicast Maintenance Ranging - No Response received - T3 time-out
121009152457 3-Critical R05.0 Started Unicast Maintenance Ranging - No Response received - T3 time-out
121009152457 4-Error DIST: Management Message with unidentified Version->4.
121009152456 7-Information Starting Ranging On Channel 2
121009152456 7-Information Dynamic Channel Change of Downstream Requested - Disabling Bridge
121009152456 7-Information Dynamic Channel Change of Downstream Requested - Setting tuner to 111.0MHz
121009152456 7-Information C202.0 DCC depart old
121009152455 4-Error DIST: Management Message with unidentified Version->4.
121009152453 4-Error DIST: Management Message with unidentified Version->4.
121009152451 4-Error DIST: Management Message with unidentified Version->4.
121009152449 4-Error DIST: Management Message with unidentified Version->4.
121009152447 4-Error DIST: Management Message with unidentified Version->4.
121009152445 4-Error DIST: Management Message with unidentified Version->4.