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Troubleshooting: Frequent T3/T4 timeouts coinciding with loss of connection

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Troubleshooting: Frequent T3/T4 timeouts coinciding with loss of connection

The first two months with xFinity, my household experienced no problems, but in the last four months, we've had very frequent connection losses (often 4+ times per day), requiring us to manually reset our modem. We are using an SB6183 Arris modem and Google routers (NLS-1304-25), with the Performance Plus Internet package (<500Mbps). I've attached images of my modem's event log around these connection losses, as well as the information for the upstream and downstream channels. External link to images.

 

downstream channels copy.jpgtimeout log copy.jpgupstream channels copy.jpg