A connection problem

Hello everybody

I have this issue:

5 hours ago:

I can´t connect to my Suse server by ssh (using putty) ´cause console shows me this message: connection reset by peer some times, other times It let me type the user but when I going to enter the password It reset the connection.

What I did?? Reinstalled the ssh, but everything was same, the problem still appears.

So I reinstalled the Operating System, now but when I going to connect to server the problem appears again!!!!:mad::(

What could be the cause of this behavior??

Thanks for helping.

You other post has been deleted, sorry but duplicates are not allowed.

For some reason server is changing its key. I say it ´cause It shows me a new one when I ´m going to connect to it.

Did the computer's IP address change?