uag file access failed to enumerate domains

Hello,

I've just installed a fresh UAG 2010 Server (for testing purposes) and everything seems to be working apart from file access when i go into file access > click on domains i get the failed to enumerate domains.

I've read the following posts:

https://social.technet.microsoft.com/Forums/forefront/en-US/12f5db79-3696-4094-9c1d-b4c990c4febc/uag-2010-file-access-error-failed-to-enumerate-domains

http://www.microsoftnow.com/2010/02/failed-to-enumerate-domains-error-while-configuring-file-access-in-uag.html

Nothing has worked, any suggestions?

Server is 2008 R2, Domain Controller is 2012