Hi, I have one tl-wr841nd in ap mode and client is tl-wr741nd. Today, my remote tl-wr741nd was not able to associate, so I needed do wifi down and wifi on ap wr841nd.
logread from AP wr841nd
Mar 27 08:09:42 wr841nd daemon.info hostapd: wlan0: STA 64:70:02:f8:9f:70 WPA: group key handshake completed (RSN)
Mar 27 08:13:56 wr841nd daemon.info hostapd: wlan0: STA 64:70:02:f8:9f:70 IEEE 802.11: disconnected due to excessive missing ACKs
Mar 27 08:14:26 wr841nd daemon.info hostapd: wlan0: STA 64:70:02:f8:9f:70 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mar 27 08:14:26 wr841nd kern.info kernel: [1728245.510000] device wlan0.sta1 left promiscuous mode
Mar 27 08:14:26 wr841nd kern.info kernel: [1728245.510000] br-lan: port 4(wlan0.sta1) entered disabled state
After I did wifi up on AP, I was able to telnet to the client wr741nd, because it associated and this is logread from client:
Mar 28 13:27:45 wr741nd kern.err kernel: [1486100.510000] ath: phy0: Failed to stop TX DMA, queues=0x001!
Mar 28 13:27:46 wr741nd kern.info kernel: [1486101.430000] wlan0: authenticate with f8:d1:11:34:a5:c1
Mar 28 13:27:46 wr741nd kern.info kernel: [1486101.460000] wlan0: send auth to f8:d1:11:34:a5:c1 (try 1/3)
Mar 28 13:27:46 wr741nd kern.info kernel: [1486101.670000] wlan0: send auth to f8:d1:11:34:a5:c1 (try 2/3)
Mar 28 13:27:46 wr741nd kern.info kernel: [1486101.880000] wlan0: send auth to f8:d1:11:34:a5:c1 (try 3/3)
Mar 28 13:27:46 wr741nd kern.info kernel: [1486102.090000] wlan0: authentication with f8:d1:11:34:a5:c1 timed out
Mar 28 13:27:46 wr741nd kern.err kernel: [1486102.100000] ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020 DMADBG_7=0x00024e00
Mar 28 13:27:46 wr741nd kern.err kernel: [1486102.110000] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
Mar 28 13:27:46 wr741nd kern.err kernel: [1486102.120000] ath: phy0: Failed to stop TX DMA, queues=0x001!
Mar 28 13:27:47 wr741nd kern.info kernel: [1486103.050000] wlan0: authenticate with f8:d1:11:34:a5:c1
Mar 28 13:27:47 wr741nd kern.info kernel: [1486103.080000] wlan0: send auth to f8:d1:11:34:a5:c1 (try 1/3)
Mar 28 13:27:47 wr741nd kern.info kernel: [1486103.080000] wlan0: authenticated
Mar 28 13:27:47 wr741nd kern.info kernel: [1486103.100000] wlan0: associate with f8:d1:11:34:a5:c1 (try 1/3)
Mar 28 13:27:47 wr741nd kern.info kernel: [1486103.110000] wlan0: RX AssocResp from f8:d1:11:34:a5:c1 (capab=0x411 status=0 aid=1)
Mar 28 13:27:47 wr741nd kern.info kernel: [1486103.110000] wlan0: associated
Mar 28 13:27:47 wr741nd kern.info kernel: [1486103.120000] br-lan: port 3(wlan0) entered forwarding state
Mar 28 13:27:47 wr741nd kern.info kernel: [1486103.120000] br-lan: port 3(wlan0) entered forwarding state
Mar 28 13:27:49 wr741nd kern.info kernel: [1486105.120000] br-lan: port 3(wlan0) entered forwarding state
There is still this deaf wifi bug, no matter what BB or AA revision I try, it ends up with the same result one day Is there some solution? The only workaround is to periodicaly restart the router, but this is what I don't like and bug can happen after few hours of uptime.