How to Reset Password on Cisco 3945?

How to Reset Password on Cisco 3945?

If you've forgotten the password for your Cisco 3945 router, here are the steps to reset it:

1. Connect to the console port of the router using a console cable.
2. Power off the router and then power it back on.
3. Press the 'Break' key on your keyboard within the first 60 seconds to interrupt the boot process.
4. Enter 'confreg 0x2142' at the rommon prompt to bypass the startup configuration.
5. Type 'reset' to reboot the router.
6. When prompted with the initial setup dialog, type 'n' to skip initial configuration.
7. Access the router's privileged EXEC mode by typing 'enable'.
8. Copy the startup configuration to the running configuration by entering 'copy startup-config running-config'.
9. Enter global configuration mode by typing 'configure terminal'.
10. Change the password using the 'enable secret' command, e.g., 'enable secret newpassword'.
11. Save the configuration by typing 'write memory' or 'copy running-config startup-config'.
12. Reboot the router by entering 'reload'.
13. Your Cisco 3945 router password has now been reset.