Thanks for getting back to me.
Yeah. I figured that it wouldn't be possible to "loosen" the renewal rules for the reason you listed.
Well, I am happy that I found my problem, but I guess I will have to wait on Windows 8 now to get it fixed...
Yes, you are right about the UPnP. I checked Windows and it shows pfSense as a UPnP router. So, these entries make sense and should be there.
What about the UPnP error?
Nov 29 12:03:06 miniupnpd: sendto(udp): No buffer space available
Well, I did increase the Default lease time to one week in the configuration box, but it still expires after one day... Did I hit a field limit or something like that? Maybe one week in seconds is too big of a number? Not sure why that didn't work.
In any case I got the issue twice today. It seems that Windows 7 is just kind of funky with DHCP when you have two bridged network adapters... MS still recommends bridging for multiple adapters according to their web page...
I might switch DHCP to the Windows 7 server to see if that makes any difference...