Watchguard MUVPN tunnel dropping after three minutes

Here’s a tip to developers if you don’t want to be universally hated by me. If you want to create your VPN software so that it drop’s the tunnel after 3 minutes if it doesn’t receive keep alive packets on UDP ports 500 and 4500 thats fine. However please have the software create exceptions in widows firewall or alert me or document it somewhere on your site so that I don’t have to waste an entire morning trying to figure out why it’s not working. ARGH!