I have a 3845 router.
When I connect using SSH, I get the following error.
server refused authentication protocol.
Solved! Go to Solution.
did you earlier connect to another device over ssh which had either the same ip address or hostname?
maybe this a key issue. ttermpro2 knows the old key and tries to exchange with a different machine.
of course this must fail. the same comes to light when the ssh keypair itself is replaced on the router.
try to find the known_host key cache on your ttermpro and either clear it or remove the entries concerning
the particular IP or hostname.
No go on the Linux systems...I have none.
I tried on a new host, never to have connected to the router via SSH or Telnet before on the host. I saw the message, do you want to use this 2048, no way of validating, click yes to save it and use it. Clicked yes. Still get server refused user authenticaiton protocol.
this is somewhat strange.
if you wish, you may send me the public IP address of your router and I can then open a SSH session from my
Solaris Worksation and analyze the traffic packets with tcpdump and openssl client. We then see more what is
mail me the IP at: E605 ~a~T* LIVE_dot_DE
i am facing the same issue today and took me while to fix up.
this is the command i re-typed and make SSH work.
crypto key generate rsa general-keys modulus 1024
not really sure why, but that how I fixed.