Communicator Web Access Loopback Issues

On the same subject as the previous post, I ran into some more issues with the integrated authentication on CWA. It worked from any PC except for the CWA server itself. If I tried to sign in from the CWA box I'd get the endless Windows authentication dialogs and it would eventually fail. The solution? Follow method 2 from this KB:;EN-US;896861

I created the BackConnectionHostNames multi-string in HKLM\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0 with a value of, my internal CWA host name, restarted IIS and was able to login successfully.