I found a workarround:
"sudo iwconfig wlan0 power off"
solved the "No Probe response" problem... Sometimes the ping is over 200ms,.. but the network is very stable now..
ping statistic to my router: "60 packets transmitted, 60 received, 0% packet loss, time 59086ms"
So the problem is still related to the powermanagment of the driver!?
I found a workarround:
"sudo iwconfig wlan0 power off"
solved the "No Probe response" problem... Sometimes the ping is over 200ms,.. but the network is very stable now..
ping statistic to my router: "60 packets transmitted, 60 received, 0% packet loss, time 59086ms"
So the problem is still related to the powermanagment of the driver!?