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Console Connection Failing

ZCompton
Level 1
Level 1

I have a 3800 Series router and the console connection does not want to work.

We have a known good cable as it works with other routers.
We have adjusted the baud rate trying every single on available VIA putty
I cannot use my Net manager to SSH into it at all
When connecting the console cable to the router and perform a reboot the screen stays blank with no option to input any commands into the router just a black screen.

Any advice would be greatly appreciated!

5 Replies 5

It could be that the console port is broken or has hardware flow control enabled. Do you get anything on the AUX port? What does "line con 0" and "line aux 0" look like in the config.

In the backup configs I do not see a no exec on the console connection, as for the aux it is configured with a no exec. These are old templates I am looking at as I cant even get in to verify the configs on the router. I cant even break into rommon.

balaji.bandi
Hall of Fame
Hall of Fame

since there is no output i would very the port  console connected right port of console :

 

image.png

 

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johnlloyd_13
Level 9
Level 9

hi,

have you tried all possible baud rate setting?

what are the LED light status? is SYS light solid green?

also try other terminal emulator app, i.e. tera term, secure crt.

Hello

If you know the ip address of the router and are able to reboot it then you could try to connect directly into its routed port with a laptop -give the laptop an ip address within the same subnet range of the router and then try a remote connection-telnet/ssh ?


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Kind Regards
Paul