Can't get RD Gateway to work.

Hi:

I have a newly deployed Windows Server 2008 R2 SP1, I could join the server to the domain with no problems, just installed the server role RDS with role services:

 . Remote Desktop Session Host

 . Remote Desktop Gateway

Following the wizard, created the CAP and RAP policies (among other parameters).

But I have an issue: When I open Server Manager -> RDS -> then I run BPA, it finds 2 errors:

1. RD Gateway needs at least one CAP enabled

2. RD Gateway must be able to contact AD DS

I don't know what's happening, there is a CAP available (and enabled) also I disabled the firewalls on my DCs just for the BPA test, and it failed again.