So what was the best answer here? We have the same issue using MDM. Using a per app vpn the app, OneNote for example, does not connect ('try again later' error) but using Safari browser using OneNote is no issue. Quite confused by it. Any suggestions?
Thanks!
Again, after losing dozens of hours on this, for me HotSpot Shield works flawlessly with Office 365. Until I found it, Outlook would not work with NordVPN (and now the site launching issues with HotSpot Shield seem to be resolving themselves -- engineers
hard at work I'm sure).
Also, since I tried CyberGhost a few weeks ago, that too has been working flawlessly for me as well! I set it to use OpenVPN, use TCP, don't use random ports, use leak protection, and disable IPv6.
The only advantage of HotSpot Shield is that it's considerably quicker to launch and seems to make Office 365 noticeably peppier.
Note that, I've again,tried NordVPN and it still won't allow Outlook to work at all. And I tried Private Internet Access, which allowed Outlook to work fine but the one time it wouldn't work I moved on without waiting to see if it was a fluke.
CyberGhost is doing fine for weeks now.
So, try HotSpot shield, and try CyberGhost set the way I said.
Good luck.