pfSense

I have access to Netgate 4100 and 4200 routers, so I can try on those routers, but since it has been observed on three different Netgate routers, one of which is Intel and the other two are different gen ARM, I suspect this is more universal.

Would you be able to test this on 24.11-RC using Kea (enabled on the page System > Advanced > Networking)?

I haven't seen this happen before and I'm not quite sure what would make it happen either. Unless the client itself is not requesting a gateway in the later updates, but if that were the case restarting the server wouldn't alter the behavior.

Grab a copy of /usr/local/etc/kea/kea-dhcp4.conf when it's working and again when it isn't working -- are there any differences?

Can you get a packet capture of the DHCP requests/responses when it works vs when it doesn't?

Marcos M wrote in #note-2:

Would you be able to test this on 24.11-RC using Kea (enabled on the page System > Advanced > Networking)?

I'll give it a try and see if it has the same problem.

Audio Images IT wrote in #note-4:

Marcos M wrote in #note-2:

Would you be able to test this on 24.11-RC using Kea (enabled on the page System > Advanced > Networking)?

I'll give it a try and see if it has the same problem.

If you have a test environment, try the scenario I think causes the issue: Bring up the router with no WAN connection (i.e., like if the ISP or modem is down). Try it a few times and see if you are able to replicate the problem. It won't happen every time, but I'm surprised if no one else has this problem.