To reset a 1841, you’ll need to connect to the console and put the router in ‘rommon’ mode
- Connect up your console cable and get PuTTY ready on the correct port.
- Power on the router. As soon as you see iOS loading in PuTTY, right click the top of the PuTTY window and go to Special Commands > Break.
- The router should now be in rommon mode. Run the following command, then reboot the router with ‘reset’:
confreg 0x2142
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Once the router has been rebooted, save the config with:
copy running-config startup-config
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