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.

[cowhow]

My thermal errors also returned.  But CPU usage remains low and memory is in the low 70s.  But things got a little confusing with Asus support.  I received a second email from Ian with Asus giving me another, earlier, build of firmware.  Its 37772.  I'm going to install it to see what, if any, difference I see. 

[Aureliannn_ASUS]

Hi all,

we apologize for the delayed response due to the recent holiday.

Regarding the Thermal Log Error issue, our team is actively investigating it. 

To assist in gathering more information for verification, we kindly ask you to submit a system report at the time the issue occurs and send us the following details via private message:

1. Product serial number
2. Time of issue report submission
3. Email used in the issue report
4. Time when the issue occurred
5. Device MAC address
6. Current network architecture diagram

We will review the information you provide and proceed with further verification. Thank you for your cooperation!

[rflw]

Hello @Aureliannn_ASUS

I've sent you a private message and uploaded the feedback diagnosis along with specifics to my network.  I am looking for a link to the beta firmware to assist you with feedback. Please send me a private message with the beta link.

Thanks

[fairfacts]

issue since install 1 week ago.

Spikes on 1 processor and failure to read thermal output. Log Sample:

Feb  7 11:08:12 kernel: thermal thermal_zone0: failed to read out thermal zone (-1)

Feb  7 11:08:16 kernel: read_bpcm_reg_direct_keyhole: Wait for completion failed, devAddr 0x3, offset 24, idx 2

Feb  7 11:08:16 kernel: thermal thermal_zone0: Failed to get RAIL 0 temperature, ret=256

Feb  7 11:08:16 kernel: thermal thermal_zone0: Failed to get temperature, ret=-1

Feb  7 11:08:16 kernel: thermal thermal_zone0: failed to read out thermal zone (-1)

Feb  7 11:08:19 kernel: read_bpcm_reg_direct_keyhole: Wait for completion failed, devAddr 0x3, offset 24, idx 2

Feb  7 11:08:19 kernel: thermal thermal_zone0: Failed to get RAIL 0 temperature, ret=256

Feb  7 11:08:19 kernel: thermal thermal_zone0: Failed to get temperature, ret=-1

Feb  7 11:08:19 kernel: thermal thermal_zone0: failed to read out thermal zone (-1)

Router MAC  in pm

Serial in pm 

Network Architecture

ISP ->Mikrotik Hex

Router -> Netgear Nighthawk 8500 (gaming only)

-> Asus Router              -> wireless network IOT, Guest, 2.5ghz,5Ghz

->Negear POE Switch               -> Ethernet devices

->raspberryPi, Pihole, Homeassistant

->Netgear POE 2

-> Ethernet devices

-> old Netgear

[fairfacts]

couldnt figure out private messaging. Also logged ticket through router interface separately