5ghz wifi randomly drops on rt-ac86u 384.14_2

[davidlee93]

for some reason, only the 5ghz wifi drops but the 2.4ghz wifi and ethernet continue working as normal.

router system log:

Jan 25 11:31:26 kernel: DUMP CONSOLE: r: seq 0xd2 tid 2
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036617.001 wl1: link up (wl1)
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036617.003 wl1.0: wlc_send_bar: seq 0x222 tid 3
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036617.004 wl1.0: wlc_send_bar: seq 0x265 tid 0
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036617.010 wl1.0: wlc_send_bar: seq 0x252 tid 0
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036617.095 wl1.0: wlc_send_bar: seq 0x133 tid 2
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036617.819 wl1.0: wlc_send_bar: seq 0xe8f tid 0
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036620.064 wl1.0: wlc_send_bar: seq 0x57e tid 0
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036620.189 wl1.0: wlc_send_bar: seq 0x70 tid 3
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036621.303 wl1.0: wlc_send_bar: seq 0x921 tid 3
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036622.550 wl1.0: wlc_send_bar: seq 0xd5 tid 1
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036623.971 wlc_ucode_download: wl1: Loading MU ucode
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036623.986 wl1: CORE INIT : nfifo 32 mu_tx_enab 1
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036623.987 wl1: CORE INIT : mode 2 pktclassify 1 rxsplit 0  hdr conve 0 DMA_CT Enabled
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 wl1: link up (wl1)
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002
Jan 25 11:31:26 kernel: DUMP CONSOLE: FWID 01-73fde4c6
Jan 25 11:31:26 kernel: DUMP CONSOLE: flags 330005
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002
Jan 25 11:31:26 kernel: DUMP CONSOLE: TRAP 3(2aba20): pc b1540022, lr 27419f, sp 2aba78, cpsr 8000193, spsr 8000033
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002   ifsr 5, ifar b1540022
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002   r0 5003c, r1 33cd48, r2 38cd90, r3 4, r4 42416c, r5 33cd48, r6 3c46ac
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002   r7 0, r8 33cd48, r9 0, r10 4, r11 384ac0, r12 b1540023
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002
Jan 25 11:31:26 kernel: DUMP CONSOLE:    sp+0 00000000 00000000 00000018 0043910c
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002   sp+10 00439178 0020a9dd 0000058b 02430024
Jan 25 11:31:26 kernel: DUMP CONSOLE:
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+14 0020a9dd
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+18 0000058b
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+38 0000880f
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+4c 0001883b
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+7c 0022e845
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+c4 002058c7
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+e0 00000373
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+ec 0020b485
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+124 0020b4cd
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+128 0000034b
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+144 0020a787
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+14c 0020a7a3
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+154 0020b997
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+164 000a2239
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+184 00208841
Jan 25 11:31:26 kernel: DUMP CONSOLE: 036624.002 sp+1a4 0020bd15
Jan 25 11:31:26 kernel: dhdpcie_checkdied: msgtrace address : 0x00000000
Jan 25 11:31:26 kernel: console address  : 0x0043FCF0
Jan 25 11:31:26 kernel: Assrt not built in dongle
Jan 25 11:31:26 kernel: TRAP type 0x3 @ epc 0xb1540022, cpsr 0x8000193, spsr 0x8000033, sp 0x2aba78, lp 0x27419f, rpc 0xb1540022
Jan 25 11:31:26 kernel: Trap offset 0x2aba20, r0 0x5003c, r1 0x33cd48, r2 0x38cd90, r3 0x4, r4 0x42416c, r5 0x33cd48, r6 0x3c46ac, r7 0x0
Jan 25 11:31:29 rc_service: restart_wireles 15872:notify_rc stop_obd
Jan 25 11:31:29 kernel: device eth5 left promiscuous mode
Jan 25 11:31:29 lldpd[1073]: removal request for address of fe80::b26e:bfff:fe64:b680%18, but no knowledge of it
Jan 25 11:31:29 kernel: br0: port 5(eth5) entered disabled state
Jan 25 11:31:30 kernel: device eth5 entered promiscuous mode
Jan 25 11:31:30 kernel: br0: port 5(eth5) entered listening state
Jan 25 11:31:30 kernel: br0: port 5(eth5) entered listening state
Jan 25 11:31:32 kernel: br0: port 5(eth5) entered learning state
Jan 25 11:31:34 kernel: br0: topology change detected, sending tcn bpdu
Jan 25 11:31:34 kernel: br0: port 5(eth5) entered forwarding state
Jan 25 11:31:44 kernel: br0: port 6(eth6) neighbor 8000.9c:3d:cf:e2:2f:ed lost
Jan 25 11:31:44 kernel: br0: topology change detected, propagating
Jan 25 11:31:46 wlceventd: WLCEVENTD wlceventd_proc_event(386): eth5: Deauth_ind 44:61:32:78:12:CC, status: 0, reason: Class 3 frame received from nonassociated station (7)
Jan 25 11:32:18 wlceventd: WLCEVENTD wlceventd_proc_event(420): eth5: Auth 44:61:32:78:12:CC, status: 0, reason: d11 RC reserved (0)
Jan 25 11:32:18 wlceventd: WLCEVENTD wlceventd_proc_event(449): eth5: Assoc 44:61:32:78:12:CC, status: 0, reason: d11 RC reserved (0)
Jan 25 11:35:17 kernel: eth3 (Ext switch port: 2) (Logical Port: 10) Link DOWN.
Jan 25 11:35:17 kernel: br0: port 3(eth3) entered disabled state
Jan 25 11:39:01 kernel: eth2 (Ext switch port: 1) (Logical Port: 9) Link UP 1000 mbps full duplex
Jan 25 11:39:01 kernel: IPv6: ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready