searching through the forum I found this post: http://talk.maemo.org/showthread.php?t=941 seems the problem was there in older models of Nokia. seems the only way to ssh into the n900 is this (taken from other thread): Fortunately, it also seems that incoming activity on a live interface prevents it from going asleep (which sort of makes sense :-). So there is a very simple workaround to ensure comfortable ssh sessions without annoying pauses, under Windows or Unix : - launch a console windows and type : ping -t xx.xx.xx.xx (IP of 770) - "activate" the Nokia's WLAN if necessary by loading a web page or such - verify that the ping commands are successful and stay that way - launch ssh session. Mine has been running idle for more than an hour now, with no freezes
ssh -o ServerAliveInterval=4 user@192.168.0.100