Stalls from WAC730

[bmomjian]

I have three WAC730s running in ensemble mode.  They are running firmware version 3.9.1.0.  One of the devices was showing occasional 40-second transmit/receive stalls, while the others were fine.  I did a factory reset of all devices and reconfigured, but the problem remained. I swapped two of the devices and the problem occurred again on the same device in its new location.  I think I have proven the one device is bad.  How do I confirm that and get it replaced under warranty?

[bmomjian · Accepted solution]

I have moved the WAC back to its original spot and could not get any failures even after testing every second for four days.  I am not sure what fixed it, but it wasn't uptime, configuration, or temperature.

[bmomjian]

I ran ping to look for stalls while checking changes in the kernel logs using 'dmesg', and saw this message during stalls.  Does this help?  It is an Apple device, though I am monitoring from a non-Apple laptop.

wl0.0: wlc_ampdu_watchdog: XXXXXXX in PS mode may be stuck or receiver died
wl0: wlc_ampdu_watchdog: cleaning up ini tid 0 due to no progress for 2 secs tx_in_transit 1
wlc_dump_aggfifo:
framerdy 0x2 bmccmd 1 framecnt 0x1
AQM agg params 0xfc0 maxlen hi/lo 0x0 0xffff minlen 0x0 adjlen 0x0
AQM agg results 0x8001 len hi/lo: 0x0 0x606 BAbitmap(0-3) 0 0 0 0
wl0: wlc_ampdu_tx_send_delba: tid 0 initiator 1 reason 39
ba_state 3 ba_wsize 16 tx_in_transit 1 tid 0 rem_window 16
start_seq 0x32 max_seq 0x33 tx_exp_seq 0x33 bar_ackpending_seq 0x32
bar_ackpending 0 free_me 0 alive 0 retry_bar 0
retry_head 0 retry_tail 0 retry_cnt 0
ackpending:
  0000: 00 00 00 00 00 00 00 00
barpending:
  0000: 00 00 00 00 00 00 00 00
txretry:
  0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0032: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0048: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
retry_seq:
  0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0032: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0048: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0096: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0112: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

[DaneA]

@bmomjian,

Good day! 🙂  Found out from the NETGEAR Support Team that you have already an ongoing support ticket with them.  You may want to post here the progress of your support ticket. 

Regards,

DaneA

NETGEAR Community Team

[bmomjian · Accepted solution]

I have moved the WAC back to its original spot and could not get any failures even after testing every second for four days.  I am not sure what fixed it, but it wasn't uptime, configuration, or temperature.