Courtney Rosenthal

New Blog Post: Postmortem - Router Failure

My home network border router failed, taking down Internet access and critical services over three days. This is the incident report.

https://www.crosenthal.com/chrome/2026/03/16/postmortum-router-failure.html

#selfHosting #opnSense

Postmortem: Router Failure

My home network border router failed, taking down Internet access and critical services over three days. This is the incident report.

Courtney Rosenthal
Mar 16 at 2:38pmWeb
Show threadTom Brown🏒1d ago
@courtney some good lessons including DHCP is awesome until it isn't.
Show threadCourtney Rosenthal1d ago

@tom Thanks for the feedback.

I'm glad that the network KVM was the only item that was on DHCP but should have been a static assignment. I've got that fixed now.

Now, losing DNS, that was a much bigger hit. I should investigate whether Unbound DNS (that's what is running on the router) supports secondaries, so I can have a backup.

Show threadTom Brown🏒1d ago
@courtney I need to do that. Thanks!