Hi all - I apoligize for the not-necessarily-on-topic post, but I've been struggling with this issue for the past two weeks and am about out of ideas and options other than ask here.
The short version is I recently got FIOS at my (new) house, and plugged in my router (SFF PC running Vyos). Initially, all was fine, however, some time later, connectivity to the gateway given by the DHCP server is completely lost. If I force a renewal, the gateway (sometimes) comes back--sometimes not. When it doesn't work, the DHCPDISCOVER process has to start over again and I often recive a lease in a completely different subnet--which isn't really the problem, but seems to be symptomatic of whatever is happening upstream of me. The problem, from my perspective, is that the IPv4 gateway given to me in my DHCP lease goes away before my lease expires--leading to broken v4 connectivity until either 1. the system goes to renew the lease and fails, starting over; or 2. A watchdog notices and renews the lease (This is what I have attempted to implement, without much success). As a note, IPv6 connectivity (dhcpv6-pd, receiving a /56) is entirely unaffected when IPv4 connectivity breaks. For the past week, I have been monitoring to various IPv4 and IPv6 endpoints over ICMP and TCP, and have been able to chart the outages over that period. More or less, every two hours, shortly after a lease is renewed, the gateway disappears. I'm happy to share more details and graphs/logs with anyone who might be able to help. I have attempted to contact FIOS support several times and even had a trouble ticket opened at one point--though this has been closed as they cannot apparently find any issue with the ONT. I'm at my wit's end with this issue and would really appreciate any and all help. Please contact me off list if you need additional details--I can provide ticket numbers/conversation IDs/etc, as well as graphs/logs/etc. Best, Neil Hanlon
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