Wythered: If you used port forwarding of port 6346 for one of your computers, you'll need to forward a separate port no. for each of the others. ie: the other 2 must use a different port no. Be that 6348 & 6342 for example. Unless you just jump-connect them with the same connection & don't run them from at the same time.

I think you'd find the other two computers give a False reading on the Bug Report.