cf ssh not working

Hi there,
sorry if this is not the right place to ask. My question is simple, I’m just trying to log into my app by running “cf ssh” but this does not seem to work as I get a failure message “Error opening SSH connection: ssh: handshake failed: EOF”.
I also tried to connect with the standard ssh command, which according to cloud foundry documentation would look like this: “ssh -p 2222 cf:<app_guid>/”. In this case, I’m hitting a different error mesage - “kex_exchange_identification: Connection closed by remote host” - but still it does not work.
By the way, ssh is enabled both at space level and for my app.

I’d really appreciate if anyone can point me in the right direction.
Thank very much in advance,
best regards

Read manual pages:

man ssh_config

man sshd_config

man ssh

and BSI TR-02102-4:
and use ssh parameter “-v” (v => verbose mode).

I have the same problem as well.

Same issue here, still not fixed