console port not working 2811

[ahmedfaidsh]

Hi I have router cisco 2811 in training center the username and password forgotten and the console not working to recovery

[MHM Cisco World]

https://www.firewall.cx/cisco/cisco-routers/cisco-router-password-recovery.html

Check this 

MHM

[ahmedfaidsh]

The console port not working I tchange all bude rate but not working

[MHM Cisco World]

Change cable 

MHM

[ahmedfaidsh]

the cable is working on onther router 

[Gopinath_Pigili]

Hello ahmedfaidsh,

Please try following possibilities:

use these troubleshootings.

1 - Baurt value change setting

2-  Console cable change

3-  used different kind of terminal softwares

4-  its not going on Romon mode

 If you work through those possibilities and the console still does not work then I have another possibility to suggest.

Perhaps someone configure the command no exec under line con 0. This would cause the console to not work. It would display messages during bootup but would not accept any commands.

Reference: https://community.cisco.com/t5/switching/console-port-not-working/m-p/2431032#M287878

Best regards
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[ahmedfaidsh]

I can connect to router by ethernet or aux but the username and password unknown

[chrihussey]

Looks like it was suggested on an earlier post...but did you try power cycling the router and send a break to the console port while it's coming up? It will get you into rommon mode. You may be able to then work on it that way.