I configured an ssh connection on an ISR 4451 router, which always worked perfectly.
For several weeks, every time I want to connect with Putty via SSH, I get an "access denied". I also cant connect from any other device via SSH to the router.
I have created a new user in ISR and created a new SSH key, but even with this, no connection is possible.
SSH connection to other router and switches works fine.
Why I get an access denied?
username admin1 privilege 15 password 7 XXXXXXXX line vty 0 4 exec-timeout 60 0 password 7 XXXXXXX login local transport input ssh
But I have:
no aaa new-model