I am facing a weird issue where after resetting the Cisco router 1921, i am trying to login using default username "cisco" and password "cisco"
and i am getting password invalid error.
I have hard resetted the router using the the key in the back.
Can someone help me in resolving this error. Its frustrating when you cant even login to a new router
Some devices are configured with onetime password. If you log on with these credentials and save the configuration, the default password is erased. If you don't have set a new password, you'll end up with an inaccessible box. This avoids production devices with the default manufacture password and being exposed.
You need to do a password recovery procedure.
1) connect via console to the device
2)power on the device
3)hit ctrl+break until you are in rommon mode
Type confreg 0x2142 at the rommon 1> prompt in order to boot from Flash.
This step bypasses the startup configuration where the passwords are stored.
Type reset at the rommon 2> prompt.
The router reboots, but ignores the saved configuration.
Type no after each setup question, or press Ctrl-C in order to skip the initial setup procedure.
Type enable at the Router> prompt.
You are in enable mode and should see the Router# prompt.
As it's a new router without previous configuration it's not really required to restore the previous saved configuration. But if you would do: copy start run
Warning: Do not enter copy running-config startup-config or write. These commands erase your startup configuration.
Type configure terminal.
The hostname(config)# prompt appears.
Type enable secret in order to change the enable secret password. For example:
hostname(config)#enable secret YourPassword
Restore the previous conf-reg value:
If you did a copy start run, you must also configure a new user:
Username youruser secret yourpassword
And of course: save your configuration
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