My home network

Intermittent external IPv4 connectivity failure while LAN and sometimes IPv6 remain healthy.

Description: I’m experiencing intermittent external IPv4 connectivity issues on my Xfinity connection. During the outages, my local gateway at 10.0.0.1 remains reachable, but external IPv4 connections to multiple destinations fail or time out. In some cases, IPv6 continues working normally at the same time.

The issue usually resolves on its own within a few minutes without rebooting the gateway or computer. I’ve also confirmed that the same workstation works normally when connected through a cellular hotspot. I have timestamped monitoring logs showing these failures and recoveries, along with GlobalProtect VPN logs that correlate with some of the events.

I’m requesting escalation beyond standard residential troubleshooting to a network or maintenance engineering team to review the intermittent IPv4 path issue.