calling web service in load balanced environment.

I'm using web services in an application. The application itself is
classic ASP but it can call the web service fine in both development
and test environments. Keep in mind that these two environments are
configured as a single web server. However, when we deployed to
production all the web service calls time out. The production
environment is a load balanced two server configuration. I've tried
using 'localhost' and the IP addresses to make the call and they all
time out. The network admin says that the call gets lost in an
infinite loop when it hits the load balancer. Is there a way around
this? We still would like to keep the production site load balanced.

Thanks in advance.