Here's my setup:

I have a sharepoint site that I've secured with an internally self-signed cert. I have setup alternate access mappings to make the site available by another name from outside. Searching only a list works but searching the site does not work. However if I pass the search string into the URL manually,  searching the site works. Let me explain:


If I search the site using the search block on sharepoint, it appends this string (&u=https%3A%2F%2FSERVERNAME%2EDOMAINNAME%2ECOM) on the end of the URL and it doesn't return anything. If I then edit the URL in my browser and remove everything from the &u onwards, the search goes through.

In other words having a URL of https://server.domain.com/_layouts/searchresults.aspx?k=SearchString works whilst https://server.domain.com/_layouts/searchresults.aspx?k=SearchString&u=https%3A%2F%2FSERVERNAME%2EDOMAINNAME%2ECOM does not work.

Hope I'm making sense.

Any ideas would be greatly appreciated.