Instant Messengers Won't Connect
So I have a really weird issue that I could use some advice on…
I am running PFSense as a Transparent Bridge. I also have Squid, SquidGuard, and LightSquid acting as a content filter. Note, that it is not doing transparent proxy, as that does not work in bridged mode. Using group policy, we have some users being sent through the proxy server, and some directly connecting, and that is working fine. I am one of the users not using the proxy, but I am unable to connect to any instant messenger client other than Gmail. I use Pidgin as my client, and I have even tried forcing it through the proxy, and Yahoo, AIM, and MSN just will not connect.
My firewall rules are pass all on the LAN and WAN interfaces as we have a firewall upstream that is already handling all the necessary firewalling.
I've done quite a bit of searching on the forums and haven't really found any similar issues.