For the past few days I've been having trouble with my router - it's running 2.4.20/iptables, and what's happening is that certain
websites will not load from any machine on the LAN.
If I try to go to http://www.mls.ca
it finds the site, changes the name to "http://www.mls.ca/map.aspx" and hangs - almost.
If I do a "view source" on the page, I'll see that some of it has loaded, and if I check a minute later, there will likely be a bit more loaded, but even after many minutes it never gets past about 8k, and never will load.
Most sites work fine, I'd say it's <10% of sites that exhibit this issue. A couple others are:
I connect through a T1, and I've even set up a new gateway machine running very simple routing rules:
iptables -A FORWARD -i eth1 -o eth0 -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A FORWARD -i eth0 -o eth1 -j ACCEPT
iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE
This second machine with simple rules exhibits the same problem.
I've played around with MTU a bit - no effect.
Any thoughts would be GREATLY appreciated - I have many users here, and they have been patient, but I'm quite eager to resolve this.
 I should add that the original router has been running for a very long time with many users without trouble. It was shut down about a week ago (just to move it), and the problem became apparent some days later (not sure, but the problem likely existed since last bootup)[/edit]