Recently some IT folks installed a patch on our windows server and now I can no longer reach our Portal admin URL and am getting a "Connection refused" error message. If I try to load the portal home page I get a 500 error. I reconfigured the ArcGIS Server Account and restarted the service just to ensure that wasn't causing problems, but no dice. I can only find one help article on this issue and it's for 10.3 and I cannot find files the steps are referencing so that's no good. Anybody have any bright ideas on how to move forward?