How do I use "Why Can't I Connect?"
Ports In Use.
Search the computer for ports in use / connected ports, listening ports, reserved ports, and all ports that can not bind.
Starting Port
Enter the starting number of the range of ports to be tested.
Total Ports
Enter the total ports to test. Enter 0 to test all remaining ports.
Port Type
Select the type of test to run on the ports.
Ports In Use / Connected Ports
Test for ports in use / connected ports.
Listening Ports
Test for listening ports.
Reserved Ports
Test for reserved ports (ports reserved by the operating system).
All Ports That Can Not Bind
Test for all ports that return an error while binding.
Show Trace Message Boxes
The 'Show Trace Message Boxes' check box is a convenience for turning off trace message boxes during ports in use testing (there may be many errors.)