OK. It seems nobody has answer. I ended up with adhoc+wep (just iwconfig) configuration. But now another problem arised. My laptop with ubuntu sees pc (debians) essid, connects to it and everything is working. But after restarting my ubuntu it connects but does not work, i.e. ping fails. i issue iwconfig wlan0 and it gives that wlan0 is connected to my pc (cell: pc's mac). but not working. please help.
ps: with windows everything is ok.
Last edited by seyuser; 07-06-2011 at 02:46 AM.