Win 7 & Avast internet Security

I am running Win 7 with Avast Internet Security. as long as I leave the firewall turned off, I have no issues, but as soon as I enable the firewall, I lose all ability to RDP to my machine. I have check the settings and RDP is set to be allowed on the default port. I hate leaving the firewall down, but it is the only way it will work. Has anyone else had this issue?

I should add that this is avast version 2014.9.0.2016