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Can't Authenticate to Office 365 Over VPN through office apps ONLY on Windows 7
We have received many troubleshooting calls lately from windows 7 users whom cant use their office apps over VPN. Outlook is the main call driver, but I have tested thoroughly and see it happening on...
ckollipa, the solution for me, way back, was to switch from the Automatic protocol setting in the ExpressVPN/Options/Protocol tab to L2TP/IPSec (ughh).
However, I haven't had to do that for quite a while now; auth for me is working over Automatic again. My hunch is that there was a protocol implementation issue that the ExpressVPN team fixed.
If Pulse Secure allows you to choose protocols, you might try playing around with that.
Good luck