MikroTik

I have an odd issue where hotspot logins are failing, radius logs show garbled passwords Auth: Login incorrect: [scott/\013\245\210g\375\200\324/w\226_\262\322\017\347:] and would like to send radius auth requests from the MT, but I am not able to cable in directly to it, or associate to the wireless. Is there any way to remotely test the hotspot functionality?

Create an EOIP tunnel between them.
If your hotspot isn't assigned to a bridge on the remote end, create a bridge, assign the interfaces you normally have the hotspot assigned to to this bridge. Then add the EOIP tunnel to the same bridge.

On a MikroTik at your physical location, create a bridge, add the EOIP tunnel to it, as well as a physical Ethernet or wireless interface (VAPs work for this as well) then connect a device to that interface, and you should draw DHCP and your traffic will be sent to/from that hotspot.