Neil, Sorry, I must have missed that branch of the thread. When you had a computer directly connected, did you happen to run a wire shark capture? That wouldn’t require an Ethernet tap. -mel

On Jul 15, 2023, at 7:44 AM, Neil Hanlon <neil@neilhanlon.com> wrote:

On 15.07.2023 07:43, Mel Beckman wrote:

...

Matt,

I missed where the OP indicated they've tried both a direct laptop connection as well as another router. I think you may have seen my reply suggesting that and thought that was the OP stating he'd done it.

I missed it in my initial post, but had responded to your first reply in the thread saying I tried both my laptop and another (off the shelf) router.

I didn't make any changes on my end here, but the connection has been (seemingly) stable for the past ~17 hours now.

I will continue to monitor.

Thanks all!

-Neil

...

-mel ________________________________ From: Matt Corallo <nanog@as397444.net> Sent: Friday, July 14, 2023 9:44 PM To: Mel Beckman <mel@beckman.org>; Neil Hanlon <neil@shrug.pw>; nanog@nanog.org <nanog@nanog.org> Subject: Re: Request for assistance with Verizon FIOS connection

OP indicated they've tried both a direct laptop connection as well as another router. That seems to meet the requirement for having ruled out his home-made router, though obviously I agree one should attempt to rule out any possible errors by doing transparent packet sniffing analyzing the problem carefully before escalating an issue. Hopefully everyone on this list knows the value of the tech on the other end of the line's time :)

Matt

...

On 7/14/23 9:07 PM, Mel Beckman wrote: Getting the FCC involved seems premature, since the OP hasn't yet ruled out a problem with his home made router. Not that there's anything wrong with making your own router, but it seems there is a burden of proof on the end user to demonstrate the problem isn't at with the CPE. Even a test as simple as connecting a laptop up for a day and running pings would rule out the CPE.

-mel ---------------------------------------------------------------------------------------------------- *From:* NANOG <nanog-bounces+mel=beckman.org@nanog.org> on behalf of Matt Corallo <nanog@as397444.net> *Sent:* Friday, July 14, 2023 5:46 PM *To:* Neil Hanlon <neil@shrug.pw>; nanog@nanog.org <nanog@nanog.org> *Subject:* Re: Request for assistance with Verizon FIOS connection I've always had good luck with https://consumercomplaints.fcc.gov/hc/en-us <https://consumercomplaints.fcc.gov/hc/en-us>. This tends to result in a higher-level tech getting assigned to your ticket at least at larger providers. Depending on where you are, your local government may have a similar process (e.g. in NYC the city has a similar process that tends to get very high priority tech attention as city council members will rake providers over the coals on individual complaints come contract-renewal time).

Matt

On 7/14/23 8:01 AM, Neil Hanlon wrote:

...

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