Hi guys, so I have an Lenovo X200 with an Intel 5350 cards. This card contains WiFi and WiMAX radios (not shared). The association with an AP keeps breaking all the time and it is pretty hard to establish a durable connection. After a long debugging session with Reinette we finally tracked down what is going on here. A full scan with this card takes 7-9 seconds and that seems to be too long and trigger IEEE80211_MONITORING_INTERVAL which then deauthenticates us with the AP (reason=6). Problem then is that the attempt authenticate/associate with the AP fails with all the time (reason=2). Bringing the interface down/up again doesn't help. It seems that some internal mac80211 states are messed up. Some times the whole process stalls completely and nothing happens anymore. Only unloading and reloading the driver or rebooting helps. Increasing the IEEE80211_MONITORING_INTERVAL to 10 seconds doesn't trigger the deauthentication with the AP anymore (or less likely). During debugging I verified that only the scan actually triggers the deauthentication. If I don't scan (NM disabled) then everything works smoothly. I am running the latest wireless-testing tree (based on 2.6.30-rc2) from today and the wpa_supplicant from GIT with nl80211 driver. Regards Marcel -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
