OK, I made a few steps.
I saw that the keyboard come back after 25-35 sec. so the connection is
hang. Note, that I can use the local connection (by the router Linksys from
my workstation @ server with ssh-server only or I can use a internet connection
by adress from no-ip.com. Both connection
I have updated my Ubuntu to 8.10 version.
I have a one machine at work and I have to say that open ssh sometimes hang on
different hardware/connection. Especially when I change a window application to
another in local PC and come back to terminal (or putty).
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Lost keyboard in ssh connection
