Srg542

I have been using PC Monitor for a few months now to monitor my servers behind our corporate firewall and all has been well. Last night, all servers reported being offline which seemed unlikely. As of today, they are still not reporting but I confirmed they are working. I believe that my main office may have some ports offline or blocked but I can't find any documentation on which ports are used by PC Monitor so I can report this issue to my IT group. Where can I find port and communication methods that PC Monitor uses?