Unable to register - Check your Internet connection and try again

I'm unable to register Parallels 13. I've been trying for hours but I get the following error message:

Check your Internet connection and try again. If the problem persists, follow this link to register your copy of Parallels Desktop.​

I've been through the KB, checked hosts, firewall, proxy settings etc and no change. I have registered the key via the webpage but unable to use app. Any advice much appreciated.

 

Hi @DavidH42 , we had a minor technical glitch which has been resolved now. Please try to activate now and let us know if works.