Cisco ASA ssh not connecting with Putty

TAC-itsupport — Mon, 12 Feb 2024 16:02:07 GMT

I am unable connect to the Cisco ASA 5506-X with putty but I'm able to connect to the old ASA 5505. Recently, we replaced our ASA 5505 with 5506-x and whenever I try to connect to the new ASA I got this error message" Selected host key algorithm does not correspond to any supported algorithm". However, I can connect without any issue to the old ASA. I tried to use another computer with updated putty but I got this error "Couldn't agree a key exchange algorithm (available diffie-hellman-group14-sha256". Does anyone know what I can do to fix it.

Thanks

Re: Cisco ASA ssh not connecting with Putty

balaji.bandi — Mon, 12 Feb 2024 16:05:26 GMT

First get new Putty 0.80 and check ciphers you have latest. and test it

topic Cisco ASA ssh not connecting with Putty in Network Security

Cisco ASA ssh not connecting with Putty

Re: Cisco ASA ssh not connecting with Putty