D-Link 520+ se nechce připojit k AP

V počítači používám wifi D-Link DWL 520+ s oficiálními ovladači acx100, ale po příkazu

iwconfig wlan0 essid AP mode managed encr klic ap 00:13:46:6F:CE:36

se mi k APečku nepřipojí. Když ale použiju ndiswprapper, tak se připojení podaří. V dmesgu se mi objevuje tato chyba:

wlan0: tx error 0x20, buf 00! (excessive Tx retries due to either distance too high or unable to Tx or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 'retry')
wlan0: tx error 0x20, buf 01! (excessive Tx retries due to either distance too high or unable to Tx or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 'retry')
wlan0: tx error 0x20, buf 02! (excessive Tx retries due to either distance too high or unable to Tx or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 'retry')
wlan0: several excessive Tx retry errors occurred, attempting to recalibrate radio. Radio drift might be caused by increasing card temperature, please check the card before it's too late!
disabling above message
wlan0: tx error 0x20, buf 03! (excessive Tx retries due to either distance too high or unable to Tx or Tx frame error - try changing 'iwconfig txpower XXX' or 'sens'itivity or 'retry')
wlan0: less than 5 minutes since last radio recalibration, not recalibrating (maybe card is too hot?)

Dotaz: D-Link 520+ se nechce připojit k AP