I had a perfectly working NIS 21.xx installation, and I've tried to upgrade to v22. After install, I got the "We're working to resolve an issue that prevents us from completing your request. Try again later. (-6)" error during activation.
As far as I can tell, this is a known issue.
I didn't want to be left without a working install, so I uninstalled (from control panel, and then using the removal tool), and reinstalled v21 using the installer that was downloaded when I originally installed it.
NIS is working fine, and shows 208 remaining days in my subscription, _BUT_ when I choose "Check subscription status" it fails to connect to the server and suggests that I try later.
Is that known as well? Is there any way to make it work? Is there any ETA for v22 activation to work?