We have a Full T1 line connected to a Cisco Router, which in turn is connected to a proxy server. I have separate DSL line connected to the DSL Modem, which in turn is connected to a firewall device.
In Internet Explorer, if the client is configured for the proxy server, he goes out thru the T1. If no setting exists, he goes out through the DSL side.
Up until two weeks ago, things were fine. Then clients configured for proxy started complaining about slowdown in the speed getting out to the Internet. We ran a tracert to an external IP from the client and found out that the first hop is our firewall device, not the cisco router.
When we do a speed test (optonline.net) again from the client, we find that we get a lower speed than the DSL (last test clocked a 136 Kbps)!
Any help would be greatly appreciated.