- 1). Click the Windows "Start" button and select the "Run" option. Type "cmd" in the textbox and press the "Enter" button.
- 2). Type "telnet <serverIP>" in the command prompt. Replace "<serverIP>" with the IP address of your telnet server. The telnet server responds with a confirmation of connection.
- 3). Type "user <username>" at the command prompt. Replace "<username>" with your login. If you are able to login, the server responds with an "Ok" message.
- 4). Type "pass <password>" at the prompt. Replace "<password>" with your current password.
- 5). Type "newpass <newpassword>" at the prompt. Replace "<newpassword>" with the password you want to use on the telnet server. At this point, your password is changed.
- 6). Type "quit" to exit the console application. The next time you login, the new password is used to authenticate your connection.
Source...