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How to use the telnet command

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Summary

Telnet command will test if a port is open. It tests connectivity to a remote server on a given port, which can help diagnose communication issues with your Sage 50 Accounting program.

Resolution

Find the server ip address

Find the ip address of the server or main computer. Use the ipconfig command at the server to return the ip address.

Enable telnet

  1. In the Windows Search, type Control Panel.
  2. Open the Control Panel, then Programs and Features.
  3. On the left side of the window, select Turn Windows Features on or off.
  4. Check the box for both Telnet Client and Telnet Server.
  5. Select OK.

Test if ports are open and listening

  1. Select the Windows + R. 
  2. Type CMD in the Run box.
  3. Select OK.
  4. Type telnet (server IP address) 13531.  For example, type telnet 192.168.0.100 13531 if the server ip address is 192.168.0.100.  
  5. If you see a blank cursor, then the connection is fine. You can close the command prompt window.
  6. Verify that you can now telnet successfully.
  7. If you get an error or unable to telnet successfully, contact your Network Administrator for Troubleshooting network issues.