We have Tridion 2011 and are experiencing issues with Search.
We have 2 Content Manager servers behind a network load balancer.
Does search need to be configured differently in this scenario?
I've looked in the documentation and can't find a guide for this, does anyone know if it exists?
Update
The issue is that not all items appear in search results, for example a search for recently changed items does not show all items that have recently changed. We thought this was a configuration issue, which the answer below confirms.