Situations often arise when the installed application does not perform the functions that are assigned to it. One of the possible causes of problems is that the port on which the program receives / sends packets necessary for its work is closed. How to find out the closed ports?
Instructions
Step 1
The port can be closed both on the modem or router, and on the provider's side. In addition, it can be blocked by your firewall. Using standard Windows tools, you can check if the port that the program uses for its work is closed.
In order to check the open / closed ports of Windows, you need to use the command line. To start it press the key combination "Windows + R". After these actions, a window will open. You need to enter "cmd" in it. Then press the "Enter" key.
Step 2
A black window will appear on the screen, which experts call the Windows command line. Now you can run the utility itself, which will allow you to view the list of closed ports. Enter the "netstat" command at the command prompt.
Step 3
After entering, press the "Enter" key. The command line window will display information about all open ports on your computer. It will be listed after the domain name of your personal computer and separated from it by a colon. Please note that all ports that are not listed in this list are closed. And if the port that your application uses is included in this list, then it will need to be closed in order for the application to function normally.
