SSH'ing to Cisco gear crashed RDM

Hi,

Since the past few months, I've been having to resort to plain old PuTTY to access my Cisco switches, firewalls and routers, because, oddly, RDM just started crashing.

SSHing to other devices, such as Linux systems still works fine from within RDM.

When trying to open a PuTTY session (from within RDM) to a Cisco switch (for instance), RDM will ask me for my username/login, then ask me to confirm the SSH fingerprint etc, then finally ask for my password. Upon entering the password, RDM, stalls for a few seconds, then the whole RDM application just closes without any reported error dialogue box.

RDM has behaved like this throughout multiple fixes and releases now. To be honest, I haven't had time to write up a ticket or post before, as I was just hoping it would get fixed, but maybe there is something more sinister or specific to my setup going on, ir no-one else is reporting it?

Can anyone give me some advice on how I can start troubleshooting this, considering the same set-up works for Linux hosts? It can't be a change on my Cisco stuff, as we have hundreds of devices, which are all separately managed, and RDM used to be able to connect to them fine.

Thanks.

Elliot