RT-BE92U Persistent Thermal Zone Faults

[RicoSuave]

First post here so bear with me if I miss anything. Since purchase, my RT-BE92U has been plagued with the same issues others have posted here. Up until the new firmware version dropped, I was having constant problems with network stability. I am currently running the latest firmware version (3.0.0.6.102_37435) and a lot of the issues seem to have been resolved except for one. Before the firmware update, I was seeing intermittent thermal zone errors in the system log. Since applying the update, I am consistently getting the following errors that appear every 3 seconds exactly:

Jan 4 18:29:52 kernel: read_bpcm_reg_direct_keyhole: Wait for completion failed, devAddr 0x3, offset 24, idx 2
Jan 4 18:29:52 kernel: thermal thermal_zone0: Failed to get RAIL 0 temperature, ret=256
Jan 4 18:29:52 kernel: thermal thermal_zone0: Failed to get temperature, ret=-1
Jan 4 18:29:52 kernel: thermal thermal_zone0: failed to read out thermal zone (-1)

On occasion, the errors coincide with a drastic decrease in wireless network performance. Under normal conditions, when connected to the 6GHz network, my wireless network download speed averages around 1100Mbps. This will drop to a nearly unusable 2-3Mbps. The 2.5GHz and 5GHz networks also see a decrease in speed to around the same 2-3Mbps. Wired clients seem unaffected. Once I perform a hard reset to the router, it seems to correct the speed issue for a while, but the thermal zone errors continue to persist. This seems to happen anywhere from once a week, to every day. Performing a hard reset isn't something I want to nor should have to keep doing to correct the issue every time it happens. Please let me know if there is anything else I can do to stop this from happening. I am getting very close to returning this router and exchanging it for a different brand. Thanks.

[Lid]

Since applying the beta firmware I have a whole host of new log messages and seem to be experiencing more wifi drops.  After a previous reset I was not seeing the level or thermal logs that others are experiencing and the CPU load seems to have calmed down.  I however attributed the bouncing cores to my USB HDD. When I remove the drive it improved.    ASUS placed the beta on a share so I can presumably allow others to test it? Perhaps best if you direct message me and I'll share their download link.

[DesiBuckeye]

his is what I see after a reboot. The thermal errors haven't come up yet, but there are all kinds of new errors.

Jan 24 11:22:47 kernel: WLC_SCB_DEAUTHORIZE error (-30)
Jan 24 11:22:47 kernel: WLC_SCB_DEAUTHENTICATE_FOR_REASON err -30
Jan 24 11:22:47 wlceventd: wlceventd_proc_event(656): wl0.1: Deauth_ind C8:FF:77:E9:0A:A8, status: 0, reason: 4-way handshake timeout (f), rssi:0
Jan 24 11:22:47 wlceventd: wlceventd_proc_event(656): wl0.1: Deauth_ind C8:FF:77:E9:0A:A8, status: 0, reason: Unspecified reason (1), rssi:0
Jan 24 11:22:47 wlceventd: wlceventd_proc_event(673): wl0.1: Disassoc C8:FF:77:E9:0A:A8, status: 0, reason: Disassociated because sending station is leaving (or has left) BSS (8), rssi:0
Jan 24 11:23:07 wlceventd: wlceventd_proc_event(696): wl1.1: Auth 94:D0:0D:5F:49:21, status: Successful (0), rssi:0
Jan 24 11:23:07 wlceventd: wlceventd_proc_event(733): wl1.1: Assoc 94:D0:0D:5F:49:21, status: Successful (0), rssi:-52
Jan 24 11:23:11 kernel: WLC_SCB_DEAUTHORIZE error (-30)
Jan 24 11:23:11 wlceventd: wlceventd_proc_event(656): wl1.1: Deauth_ind 94:D0:0D:5F:49:21, status: 0, reason: 4-way handshake timeout (f), rssi:-52
Jan 24 11:23:11 kernel: WLC_SCB_DEAUTHENTICATE_FOR_REASON err -30
Jan 24 11:23:11 kernel: WLC_SCB_DEAUTHORIZE error (-30)
Jan 24 11:23:11 wlceventd: wlceventd_proc_event(656): wl1.1: Deauth_ind 94:D0:0D:5F:49:21, status: 0, reason: Unspecified reason (1), rssi:-53
Jan 24 11:23:11 wlceventd: wlceventd_proc_event(696): wl1.1: Auth 94:D0:0D:5F:49:21, status: Successful (0), rssi:-53
Jan 24 11:23:11 wlceventd: wlceventd_proc_event(733): wl1.1: Assoc 94:D0:0D:5F:49:21, status: Successful (0), rssi:-53
Jan 24 11:23:13 wlceventd: wlceventd_proc_event(673): wl1.1: Disassoc 94:D0:0D:5F:49:21, status: 0, reason: Deauthenticated because sending station is leaving (or has left) IBSS or ESS (3), rssi:0
Jan 24 11:23:13 wlceventd: wlceventd_proc_event(656): wl1.1: Deauth_ind 94:D0:0D:5F:49:21, status: 0, reason: Deauthenticated because sending station is leaving (or has left) IBSS or ESS (3), rssi:0
Jan 24 11:23:14 wlceventd: wlceventd_proc_event(696): wl1.1: Auth 94:D0:0D:5F:49:21, status: Successful (0), rssi:0
Jan 24 11:23:15 wlceventd: wlceventd_proc_event(733): wl1.1: Assoc 94:D0:0D:5F:49:21, status: Successful (0), rssi:-53
Jan 24 11:23:19 kernel: WLC_SCB_DEAUTHORIZE error (-30)
Jan 24 11:23:19 kernel: WLC_SCB_DEAUTHENTICATE_FOR_REASON err -30

[cowhow]

Today our electricity was down for a couple of hours (not unusual in the tropics).  That meant very little traffic was going through the router.  During that time all thermal error messages stopped.  The cable modem and ASUS router are on a UPS backup and stayed online so a laptop and an HP AIO were still generating some traffic.  But the only log entries were packet entries.  

This may or may not have anything to do with the problem but it's still curious.  

[DesiBuckeye]

Since I reset this morning, my CPU usage has been low (5-15% on each core for the last 5 hours), and I'm not seeing thermal errors in the log. 

However, I am seeing these other errors. 

Jan 24 15:46:08 wlceventd: wlceventd_proc_event(696): wl0.1: Auth C8:FF:77:E9:0A:A8, status: Successful (0), rssi:0
Jan 24 15:46:08 wlceventd: wlceventd_proc_event(733): wl0.1: Assoc C8:FF:77:E9:0A:A8, status: Successful (0), rssi:-60
Jan 24 15:46:12 kernel: WLC_SCB_DEAUTHORIZE error (-30)
Jan 24 15:46:12 wlceventd: wlceventd_proc_event(656): wl0.1: Deauth_ind C8:FF:77:E9:0A:A8, status: 0, reason: 4-way handshake timeout (f), rssi:0
Jan 24 15:46:12 wlceventd: wlceventd_proc_event(656): wl0.1: Deauth_ind C8:FF:77:E9:0A:A8, status: 0, reason: Unspecified reason (1), rssi:0
Jan 24 15:46:12 wlceventd: wlceventd_proc_event(673): wl0.1: Disassoc C8:FF:77:E9:0A:A8, status: 0, reason: Disassociated because sending station is leaving (or has left) BSS (8), rssi:0

[RicoSuave]

Follow-Up: After several weeks, the thermal zone faults and continuous CPU usage persist. I know some of you have found temporary workarounds (such as disabling the 2.4GHz radio), but unfortunately, that is not an option for me since most devices on my network can only use the 2.4GHz band. I also see that some of you have tried a beta firmware version, but are experiencing other issues as well. ASUS seriously needs to sort this thing out, and soon. I'm a patient person, so I'm willing to give them another month. If nothing is fixed in a month, I'm cutting my losses and moving on.