Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
And to add to my prior post directly above, PrivateInternetAccess may be fine as well, as suggested a few posts up by another poster. I haven't tested it enough to know myself.
But why the determination to be staying with NordVPN when it seems to be the most notorious for having problems with Office 365 for a lot of people? I know it has a great reputation and is fine for plenty of people -- it's the one I myself chose after tons of research and I used it for a long time until I went from Office 2010 standalone apps to Office 365 and everything broke. I mean, if it's not working with Office 365 why go crazy wrestling with it (unless you have a prepaid annual subscription) when the others seem to work fine with perhaps one or two settings adjustments (TCP apparently being the main one if not the only one needed)? (With HotSpot Shield, no adjustments are needed.)
I'm saying all this because as soon as I went to Office 365 I lost almost two weeks without sleep and had a huge setback in my business while trying to make NordVPN work and then trying to find anything else that would work. It ended up taking almost a month. I'm just trying to help save others from that kind of fate.
I have no involvement, interest, connection, relationship, investment, or communication whatsoever with any of the VPN providers mentioned or any other aspect of the industry, other than being a customer with a minimal monthly subscription and having asked their tech support people for help at times.