solarwindsthwack

 

Knowledge Base Detailed Resolution


Category:

TFTP Server

Question:

Why do I get the error "Cannot Start TFTP Server. A TFTP Server is running on port 69" when I try to run TFTP Server?

Resolution:

You see this error if you already have a TFTP server running, or if another program is using port 69.

Are you already running TFTP Server?

If your system tray contains an icon that depicts two desktop computers, this indicates that you are already running TFTP Server. Double-click the icon to open TFTP Server.

Are you running Toolset and Cirrus on the same computer?

Toolset and Cirrus contain different versions of the TFTP Server. A conflict can occur because the Cirrus TFTP Server is a self-contained program, but the Toolset TFTP Server runs as a Windows service. Cirrus is fully compatible with the Toolset TFTP Server service, and uses that version. version of TFTP Server, but you cannot run the Cirrus version of TFTP Server if the Toolset version is already.

Is another program using port 69?

To check if another program is using port 69:

  1. Click Start, and then click Run.
  2. In the Open text box, enter cmd, and then click OK.
  3. At the command prompt, enter netstat -a
  4. Check for items under the Local Address column that include :69 or :tftp

If another program is using port 69, you must close that program before you can run TFTP Server.

Is a proxy server blocking port 69?

If the netstat -a test reveals that port 69/tftp is only in use when the "Cannot Start TFTP Server. A TFTP Server is running on port 69" message appears, then it is likely that a proxy server on your network is block port 69. Consult your network administrator for assistance.