Login failed

[dave-donni]

Hi Team, 

I'm trying to login my switch but failed. 

The switch was configured with DOS: local authentication attempts max-fail 5

Believed someone had trying to access this switch but failed for 5 consecutive attempts.

Anyone know how to unlock or clear the user lockout?

[MHM Cisco World]

Sorry what is issue' you are lockout?

MHM

[dave-donni]

I'm using putty to access the switch but failed to login. Based on my switch DOS setting, after 5 consecutive failed login attempts will lock the user. Unfortunately, I only have 1 user. I'm using WS-C2960S-24TS switch.

[MHM Cisco World]

in Security there is always backdoor 

after the x attempt the SW enter into Quit mode in this mode you can config ACL to allow specific user to access SW 
check below link for more info

 https://ccie-or-null.net/tag/cisco-quiet-mode/

MHM