Using mwg 188.8.131.52 and ssl scanner rules and explicit proxy. Trying to connect to this site - https://online.itsmfusa.org/itsmfssa/ssaauthmain.login_page and we get this error:
If we bypass the MWG the page displays fine.
I get the login page when I go through my 184.108.40.206. You don't even get that far?
It looks a timeout issue where the gateway doesn't receive a response. Do you get a 60 second delay beofre the error displays?