this post was submitted on 31 Jan 2026
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After being home for weeks, I went away for business, the 1st night away there was a brief powercut and the firewall (on a UPS) seemed to get stuck.

So, that's no DNS, DHCP, or connectivity between wifi and LAN... All due to (admittedly aging) hardware issue.

Since then my entire home system has had issues whilst it all settles down.

It made me think about getting some redundancy into the system to handle a single failure.

So,.can you give me any insights into High Availability like CARP (for pfSense), VM failover (on Incus?), mesh wifi, Home Assistant, etc?

Of course there are going to be single points, like ISP line, etc, but seems like something to test out.

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[–] JovialSodium@lemmy.sdf.org 1 points 6 days ago

Not a redundancy option, but I also had my routing setup go in to a bad state while traveling which was a hassle.

I solved this by setting up nightly reboots while away. Both my routing PC and modem are rebooted by smart switches (zwave/ZigBee) controlled by home assistant. Which means they'll operate without a working network. The routing PC is set to shutdown one minute before the smart switch turns off, and set to boot automatically when power is restored (smart switch turns back on). Which avoids any issues with hanging on a reboot.