"Why Can't I Connect" makes it easier to resolve TCP/IP connection errors. Use Why Can't I Connect to quickly diagnose connections to common server types and create generic clients and / or servers.
Any errors that are found will be reported with possible causes for the specific error, but note that Why Can't I Connect will not attempt to repair the connection with the exception of incomplete WiFi / wired network logins.
Why Can't I Connect? diagnoses the following common server types: