cannot login after changing the username

I really stuck here!

I setup a new 1841 router and I used the " no username cisco " and change the password. Now I'm
When I hit enter it keeps showing username and not going to password.

I know the password is ok because before I used the " no username cisco " I was able to log into the router with cisco as the username and my password!




unable to login to the router via telnetI thought I set it up:

line vty 0 4
password xxxxxxxx
login

but I'm unable to connect via telnet

what's my next move

thanks

rclose1977Asked:
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jtrybulskiCommented:
Your Cisco 1841 has more vty lines than 1 - 4. If you do a sho run down towards the bottom of your config you will see VTY 5 15 and possibly others. You will have to apply the password and login command to each of these line groups.
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JFrederick29Commented:
Did you save the configuration to memory (wr mem or copy run start)?  If not, reboot the router.  If you saved the configuration, you will need to do password recovery on the router and add the username cisco back to the configuration or remove the "aaa authentication login default" command.

http://www.cisco.com/en/US/products/hw/routers/ps221/products_password_recovery09186a0080094773.shtml

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Feroz AhmedSenior Network EngineerCommented:
Hi,
First thing you need to do is install TFTP ,Try to change Router Password by coping the start-up configuration through TFTP and reboot your router and press CTRL+PauseBreak and change router from 0x2102 to 0x4104 and reset password,in this way you can reset your password.
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