function readOnly(count){ }
Starting November 20, the site will be set to read-only. On December 4, 2023,
forum discussions will move to the Trailblazer Community.
+ Start a Discussion

VisualForce pages in Customer Portal reference external server - fails when in load balance

I have three Visual Force pages in the Customer Portal that reference an external server

The https:\\ URL for the external server is referenced in the Remote Site settings

Our IT people have recently started using load balancing on the external server. This means that there are two virtual machines now associated with the URL. If one goes down then the other is still running. The requests are distributed across the two servers.

The pages don't work when in load balancing mode with 2 servers.
However, when one of the virual servers is disabled it works fine.

Both servers seem to be configured properly.

Does anyone know what might cause the issue.
The security certificate seems to be fine.

Are there any other salesforce related settings that might impact permissions when using load balancing?