My organization just received 5 smart docks from logitech 2 weeks ago. I went through the initial setup and decided to not join these to our domain, at least for now. I setup a local account and updated Windows 10 to the creators update...build 1703. It came pre installed with the Skype for Business(Skype Room System V3.0.12.0). Because I set it up this way I did not see the issue you are all seeing. If I sign on using the pre built "Skype" user account I get that same error everyone else does "skype-mrx:// Invalid value for registry".
When I login to the local user I created I can run Skype room system just fine, I tested it with remote locations, it views our directory just fine. The issue I have is it shows a warning "Cannot fetch calendar", thus it does not show the meetings it has been invited to. In my outlook on my laptop I can send out the meeting invites and I receive a reply saying the room accepted the meeting. They just don't show in the skype room system default menu/interface. Other than that everything works well, I can call out, invite people to a new meeting just fine.
Does anyone else have that "Cannot fetch calendar" issue? Steve Burk Since you can login using your admin acount and run Skype do you see this issue?