Can't access my routers

[samybaril2017]

Hello.

I was doing an exercise on Cisco where I was asked to do specific configurations. Everything was going well. So I decided to close the pkt document and take a break.

When I reopened it and decided to continue the configurations of one of the routers, I was asked to type a username and a password if I wanted to access it.

I don't understand. I never set up a password, I didn't enable line vty 0 15, yet the 3 routers won't let me in.

I have been searching everywhere to find a way to overcome this problem, but none of them are working. Resetting and reloading doesn't work either.

I was wondering if you could help me unlock them.

Thank you.

[balaji.bandi]

try cisco/cisco

if not delete the node and wipe the node  start from scartch .

[samybaril2017]

wipe the node? How do I do this?

[MHM Cisco World]

if you enable aaa new model without config username/password and without failback to LOCAL you will face this issue.