At random intervals, the process or scanengine log of Symantec Protection for SharePoint Servers (SPSS) 5.1.x shows the error "Cannot connect to host or IP address." These errors appear more frequently during periods of load or when running a manual scan with SPSS 5.1.x.
To reduce or eliminate these errors
To tune TCP stack settings within the Windows registry
To configure Scan Engine's ConnectionBacklog setting at the Windows cmd prompt