We've got an "ASA 5510 SP" sitting 'tween our rack and the internets at our colo center, and it's starting to give me fits.

We use a lot of XML web services to integrate with other providers, and as we're scaling up and the load's increasing, the HTTP requests are slowing down like molasses, and starting to drop altogether.
Seeing timeouts on both getting an HTTP response back as well as opening up said HTTP connection.

This is trying to run about 30-40 simultaneous HTTP connections to a single host. Don't ask why they don't support distribution lists, I don't know either.

I've traced it down that it's somewhere on our end - when our normal queue servers are slow as hell, I can run a consumer from our office and saturate the DSL without a problem.

I have a gut feeling that the router's trying to do some sort of packet inspection or traffic shaping, is anyone familiar with these routers that can say "yeah, they do that" or "no, they don't"?