SSRS Prompting for Authentication Using FQDN

I ran into a weird problem that I figured I would share the solution to since it seems to be floating around on the internet. Basically the scenario is that if I connect to my MSSQL Reporting Server using the IP or shortname it works fine but once I use the FQDN I get prompted for credentials and it never lets me authenticate. The root cause of this is Windows Loopback Check Functionality due to a DNS and Domain mismatch. Here's what I mean:

My Domain = domain.com
My FQDN = servere1.sub.domain.com

If you do not correctly set the "Primary DNS Suffix for this Computer" under System Properties > Change > More as seen below you will experience this issue.

If you are interested there is a MS KB http://support.microsoft.com/kb/926642 that has more details but does not necessarily address this specific cause.

Serv-U FTP Server 8.0 Windows Authentication Changes

It appears that there is a change in the new version of Serv-U FTP Server that affects Windows Authentication. This change is that the Windows AD user must be a member of the "Domain Users" AD Group or Serv-U FTP Server will give you an Access Denied error upon connection. In the past you just needed an AD User account and could assign it to a "No Permissions" group so that it could only be used for FTP, however that is no longer the case.