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I am trying to connect to a Sharepoint 365 site, however I get a 502 bad gateway error. What could be causing the issue?
Have you checked Firewall settings ? or any load on Sharepoint server (sometimes overload may cause connection refuse).
Its a large corporate sharepoint, so I doubt it is load. Firewall is a possibility. Do you know which ports need to be open?
Ports one you need to check with Corporate Admin bcz they will let you know based on VPN/Connectivity setting basis.
