A wisp station stop respond after some time!

[Samuel Abreu de Paula]

Hi ppl...
Im getting a weird problem right now...
I have a wisp station in a AAEON board with wisp 2546, with a dmarc prism2 based card working ok until today!
If i reset the station, it will work for about 5-10 minutes then stop work again!

Im getting a lot of 
netcs1: TXEXC - fid=0x0204 - status=0x0001 ([RetryErr]) tx_control=000c
   retry_count=0 tx_rate=0 fc=0x0a08 (Data::0)
   addr1=00:60:b3:72:e9:1c addr2=00:60:b3:74:8a:b6 addr3=00:60:b3:74:8a:b6
netcs1: sending disassociation info to STA 00:60:b3:72:e9:1c(last=405588299, jiffies=405618399)
netcs1: TXEXC - fid=0x02b3 - status=0x0001 ([RetryErr]) tx_control=000c
   retry_count=0 tx_rate=0 fc=0x08a0 (Mgmt::10)
   addr1=00:60:b3:72:e9:1c addr2=00:60:b3:74:8a:b6 addr3=00:60:b3:74:8a:b6
netcs1: sending deauthentication info to STA 00:60:b3:72:e9:1c(last=405588299, jiffies=405618499)
netcs1: TXEXC - fid=0x0233 - status=0x0001 ([RetryErr]) tx_control=000c
   retry_count=0 tx_rate=0 fc=0x08c0 (Mgmt::12)
   addr1=00:60:b3:72:e9:1c addr2=00:60:b3:74:8a:b6 addr3=00:60:b3:74:8a:b6
Could not find STA for this TX error

messages in dmesg, and that card is in MASTER (Ap mode)... while the station is up, im getting a good signal and i can use the network perfectly well... but now the station only back if i restart the hardware! =///

Anyone knows why it of that RetryErr errors??? or Why the card is sending deauthentication?

Thanks

Samuel Abreu