09-30-2002 01:41 PM - edited 03-02-2019 01:45 AM
I Xmodem an IOS file to my 2620 router and in the process set the console bps to 115200 which chaged the register to 0x3922. Now when I try to connect from the console with any bps, I get garbage!
I can connect from the AUX port and get to the User Exec. mode but since no privileged password is set, I can't get any further to change the config register back to 0x2102.
Solved! Go to Solution.
12-13-2012 11:34 AM
Hi,
In this case, please change the speed under Line Con 0 to 9600 and then change the config-register to 2102 or anthing which responds to 9600 baud rate
Hope thats answers your queries.
Cheers
09-30-2002 02:02 PM
If you can break into rommon, try changing the config-register in rommon
http://www.cisco.com/warp/public/701/59.html#rommon1
Here are the most common break keys
10-01-2002 08:16 AM
I tried breaking into rommon but I didn't work. I had changed the router speed in rommon to xmodem a new IOS, but now I can't break into it no can I console into it. Thanks for your suggestion.
04-01-2020 07:32 PM
you cannot change the config register from rommon when the router is hosed up from rommon. all of the output is gibberish at this point. how do you recover the original baud rate remotely (connected via secureCRT) Already attempted to change the baud rate in the terminal. still getting gibberish. Router is not accessible physically
09-30-2002 02:39 PM
If you have your 2620 connected via ethernet or via a serial connection, telnet to the router and change the speed on your console port back to 9600. This will change your config register back to 0x2102.
10-01-2002 08:20 AM
The router doesn't have a working config, all the interfaces are not configured and there are no passwords configured. I can connect to the router via the AUX port but only to the User mode since no enable password is configured.
11-26-2011 11:07 PM
hoooooo! This is very OLD post though, but I found it "not answered yet!" .. acutally I landed here after googled exactly the same problem with my 2620. I found the solution for a part of it. You can console into the router using the exact same terminal prametters you used to Xmodemed your IOS file==> Bitrate = 115200
Databit= 8
Parity = none
Stopbits= 1
Flowcontrol= hardware
It works for me.
On the other hand, the router actually stuck at the 0x3922 register value, even if you cahnge it via ROMON for 0x2102 it will return back to 0x3922 after the 1st reload. The same issue exist when using the:
Router(config)#config-register
that's it
12-13-2012 11:34 AM
Hi,
In this case, please change the speed under Line Con 0 to 9600 and then change the config-register to 2102 or anthing which responds to 9600 baud rate
Hope thats answers your queries.
Cheers
12-08-2013 08:46 PM
had the same issue with Cisco ISR 2811 and after changing the speed on line con 0, and change the
config-register to 0x2102 it worked fine.
thank you Saeed Ansari
08-28-2024 06:35 AM
Had exact the same Problem right now,
my solution:
use Putty as console. There you can change the spped to 115200
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide