UAG Setup system.exception

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Was just building a UAG test server in our lab and came across an error, which was easily resolved and worth posting for others.

From the splash screen I clicked install only to receive a “system.exception” error.  Even if I ran the .msi file directly, I would get a failure.

A search returned one brief mention of a fix.  I had a Group Policy applying to the machine that was disabling the Windows Firewall.  As soon as I moved the machine account to a test OU where the policy would not apply and rebooted to refresh, the issue went away.  Setup now runs without issue.

update 4/17...

This is also mentioned in the troubleshooting section - https://technet.microsoft.com/en-us/library/ff607359.aspx

Further testing proved this may also occur if the Remote Settings for RDP are set to allow.