Unless I set "Seconds between keepalives (0 to turn off)" to 2 putty keeps disconnecting after a few minutes of inactivity. How can I fix this once and for all? I can't find where putty settings are stored on my PC
Putty settings can only be saved if assigned to a saved session.
The process is usually to configure putty as you like, go back to the first Category ("session"), enter a name, and click "Save" to save your settings.
If you don't want to have to load the session each time,you have to save the session as "Default Settings" in the saved sessions list.
If you have trouble saving this on the client site for some reason, you could consider setting it on the server side (assuming you have root access there) in