We have reduced entries for Search reasons by removing older text files and that seems to speed up things. 
However, a recurring problem persists during peak period where the service connection is lost (site says "Not 
found" on both client and directly on server), and it cannot be restarted or killed. Only a reboot of the 2010 
x64 virtual server will make it available again. 

Any further info or details I can provide please advise. Thank you Stefan.