Typically, a client sends a file to Symantec Protection Engine to scan over a socket and Symantec Protection Engine returns a response after it is scanned over the same socket. The total time to send the file and receive the response depends upon the file size. The larger the file, the longer Symantec Protection Engine takes to decompose and scan the file. So it takes longer for the response to reach the client. If you specify a small value for socket timeout, a socket timeout error gets generated. You can specify a larger socket timeout value to avoid the socket timeout error.
The maximum socket timeout value that you can enter is 4320 minutes (72 hours) while the default value is 5 minutes.