Until recently I was running the RC of WHS (being part of the Beta program); but as that was expiring I coughed up for the OEM version. After installing it when I tried to configure the domain name to mychoice.homeserver.com I got an unknown error. I tried both homeserver.com and livenode.com options but neither of them worked.
It seemed to get these working you need to open IE on your WHS and go to Tools => Security => Trusted Sites => Sites and add the following two sites and try adding it again and all should be OK then.
- http://208.99.195.35
- https://208.99.195.35