I've been encounting an annoying issue starting with my old opnsense system (21.x) and has continued to my newly installed 25.7.6 system. Basically systems behind the firewall loses connectivity to the Internet. I've started digging into the system's logs and I see these messages:
<13>1 2025-10-27T00:55:03-04:00 repulse dhclient 69014 - [meta sequenceId="1"] dhclient-script: Reason RENEW on igb0 executing
<13>1 2025-10-27T00:55:03-04:00 repulse dhclient 69658 - [meta sequenceId="2"] dhclient-script: Creating resolv.conf
igb0 is my WAN nic. Messages following those two are arp entries for my LAN (interface ix1). Nothing further mentioning igb0 until I reloaded services.
I can rectify the issue by reloading all services. Next time it happens I'll try just restarting dhclient rather than fixing it via a sledgehammer approach.
What sort of data should I provide to help upstream to rectify this?
Happened again, checked a few things. IP's were still on the WAN interface and routing table looked fine. But got different messages in /var/log/system/latest.log...
<27>1 2025-10-29T06:11:32-04:00 repulse dhclient 34003 - [meta sequenceId="1"] send_packet: No route to host
<27>1 2025-10-29T06:16:33-04:00 repulse dhclient 34003 - [meta sequenceId="1"] send_packet: No route to host
<27>1 2025-10-29T06:22:39-04:00 repulse dhclient 34003 - [meta sequenceId="1"] send_packet: No route to host
These repeated for 50 times or so.