[SOLVED] I suddenly can't access my server on my local network

TrueNAS General
1

SOLVED:

Having my PC connected to my TailNet was blocking connections on my local network for some reason; my guess is that connecting to my TailNet somehow was forcing all outgoing traffic from my PC through the TailNet. I’m not sure what setting in TailScale got changed on the reboot that forced all traffic through the TailNet but turning it off allowed my PC to access TrueNAS locally.

My 9 month old son hit the power button on my PC, and I suddenly am unable to access my TrueNAS server on my local network.

I can still access the admin panel via tailscale so I know there’s nothing wrong with the server itself. Both my PC and the server are on the same subnet (PC IP: 192.168.1.77, TrueNAS 192.168.1.174), and I have my windows network settings set to private. I can ping the server from my pc via tailscale and visa versa, but I can’t make a direct connection over my local network.

i am also able to access my server by that local IP on all my other devices on the local network, so I know something broke on my PC during that unscheduled reboot

I have since rebooted both my PC and the server multiple times, reset my network settings on the PC, and deleted network credentials. What the heck could have changed since my son hit that power button?

2

If they are both on the same network, how does Tailscale come into play, here?

3

I use tailscale to access the server when I’m not on my home network. Home assistant automations, Jellyfin, pi-hole, etc can still all work when I’m away from home. I just use the local network when I’m at home.

4

So with Tailscale disabled you can’t ping the server from your PC while both are connected to the same local network?

What do the prefix lengths/subnet masks on the PC and the server look like?

5

Correct about Tailscale. If I’m accessing the TrueNAS admin panel via Tailscale, I can ping my PC’s IP address no problem. But I can’t ping my PC’s IP when I access the TrueNAS admin panel via local network (I’ve been using my phone).

TrueNAS

192.168.1.174/24 static IP

PC

192.168.1.77 DHCP

Setting a static IP on the PC (192.168.1.77, mask 255.255.255.0) doesn’t seem to have helped either.

6

That sounds like a misconfiguration somewhere. My machines work fine even when simultaneously connected to Tailscale.

Also, what is the “TrueNAS admin panel”?