hostapd error massages

[Jan Satko]

Just some time ago Zyxel stop responding. In debug output there is only
message EAPOL-Key timeout.

But in dmesg i have another error message. Can you please also expleain
what that error message mean ? Thank you.

wifi0: TXEXC - status=0x0004 ([Discon]) tx_control=002c
   retry_count=0 tx_rate=0 fc=0x00a0 (Mgmt::10)
   A1=00:a0:c5:93:8a:c2 A2=00:60:b3:64:6d:96 A3=00:60:b3:64:6d:96
A4=00:00:00:00:00:00
wifi0: Could not find STA 00:a0:c5:93:8a:c2 for this TX error (@7746866)
wifi0: TXEXC - status=0x0004 ([Discon]) tx_control=002c
   retry_count=0 tx_rate=0 fc=0x00a0 (Mgmt::10)
   A1=00:a0:c5:93:8a:c2 A2=00:60:b3:64:6d:96 A3=00:60:b3:64:6d:96
A4=00:00:00:00:00:00
wifi0: Could not find STA 00:a0:c5:93:8a:c2 for this TX error (@7746967)
wifi0: TXEXC - status=0x0004 ([Discon]) tx_control=002c
   retry_count=0 tx_rate=0 fc=0x00c0 (Mgmt::12)
   A1=00:a0:c5:93:8a:c2 A2=00:60:b3:64:6d:96 A3=00:60:b3:64:6d:96
A4=00:00:00:00:00:00
wifi0: Could not find STA 00:a0:c5:93:8a:c2 for this TX error (@7747068)

Sincerely,

--
   Bc. Jan 'EIS' Satko       Slovak University of Agriculture
 network & system manager            Tr. A. Hlinku 2
  Tel: +421 37 7412 616           949 76 Nitra Slovakia