I have three different openhab servers, labeled
Server A - On version 3.3.0
Server B - Version 4.2.0
Server C - 4.2.2
all on separate networks that are all connected via a vpn, specifically Unifi Site Magic because of ease of setup and use. I can access all servers locally, via browser or ssh from any of the 3 networks so the vpn is working fine. I have an existing Remote Openhab bridge on Server A connected to Server B, that has worked without issue. Today I wanted to create a bridge between Server A and Server C and it will not connect at all, IP address is correct, tried the admin username and password, also tried an api token but no success. It just gives the error
" COMMUNICATION_ERROR
Failed to execute the root REST API"
However if I create a bridge on Server C connected to Server A it connects without issue… I tried creating a bridge on Server B to Server C with no success either. I haven’t found anything I am doing wrong according to the documentation. Has anyone else ran into this issue?
If it matters Server B has two Remote Openhab bridges to other openhab instances on its own local network that function flawlessly as well.