The Tailscale device is not configured as an Exit Node - it's purely there because the RUT360 is behind CGNAT, so this gives me a way to VPN into the network. I'm pretty sure the subnet is correctly configured, as I have perfect access to every other device on the network.
I can't seem to add drawings - sorry. Is it because my account is unverified or something?
I can access PC1/CAM1/AP1 and a load of other devices on the network with no problem, but accessing the RUT360 through the Tailscale node is very difficult. Sometimes it works (and when it works it works consistently - i.e. I can log in and out with no problems) but other days it is just impossible to log in. Either the login page doesn't load, or I get an 'Device unreachable' error (or something like that). My red line is the link from my remote PC to the Tailscale node, with the green line being the path 'back' to the RUT360...
I've copied logs from unsuccessful login attempts into separate comments below(for some reason I'm being told I'm over 12,000 characters...) Do they give you any insight into what's happening?
I checked the blocklist in /etc/config but it was empty.