Adding DA Entry Point: firewall requirements?

Question

Hi,
When adding a new DA Entry Point, getting error:
"A connection cannot be established to server <New_DA_Server.domain.com>.  Check that the server is available, the Remote Access role is installed, and that you have permissions to access the server".
The RA role is installed, and the domain user account is a local admin on the new DA server.  However, internal firewall restricts file share (SMB) access between the existing and new DA server.  We're changing this as I type, but are there any
other firewall port requirements to add a new entry point?  This http://goo.gl/jBlVxZ nor any other Technet page mentions inter-Entry Point firewall requirements.
Many thanks,

Answer 1

Hi There - I am not aware of any specific firewall requirements between the sites and i am not entirely convinced that SMB is the culprit. However, as an aside thought, have you ran the DA Wizard as Right Click Run As Administrator (sorry about that !) as
I have seen issues where just clicking normally prevents a few configurations from running.
Also I have seen several instances where firewalls were just not playing nicely for many reasons and I have used PowerShell Commands instead of the GUI which worked even when the GUI wouldn't. 
http://technet.microsoft.com/en-us/library/jj134167.aspx#BKMK_PSstep9 for deploying Multi-Site using PowerShell
Kr
John Davies