#iwconfig
wlan0 IEEE 802.11bgn ESSID:"blabla"
Mode:Managed Frequency:2.447 GHz Access Point: 34:81:C4:06:60:06
Bit Rate=72.2 Mb/s Tx-Power=14 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=63/70 Signal level=-47 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:1976 Invalid misc:259 Missed beacon:0
Что может быть причиной ошибок?