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RT-BE92U Persistent Thermal Zone Faults

RicoSuave
Star II

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.

108 REPLIES 108

DesiBuckeye
Star II

I switched units (same router, different unit) to try my luck . Unfortunately, after firmware upgrade and hard reset, etc. I am getting the exact same result. Thermal errors, Deauth errors, 1 core spiking close to 100, etc. I've only had a couple of complete disconnects, but I've had several freezes in video calls, slow speed on speed tests, etc. 
I'm torn between giving up or waiting about 10 more days (new return window) for any firmware updates. I've sent Asus a message from the administration page and didn't hear back. I see no recent messages from Asus on these threads now either.....

I contacted Asus tech support asking for access to beta firmware.  They asked for logs which I provided and now I’m waiting for their response.

Hi all,

Thank you for your patience. We have received your report about the "thermal error message" and have prioritized this issue.

Due to the recent holiday season, there may be some delays in our engineering team's progress. We are working diligently to investigate the issue and find the root cause.

We will notify you as soon as we have any updates. 

Please feel free to contact us if you have any further questions.

Thank you.

Thank you @Aureliannn_ASUS.  Earlier this evening I received an email from support advising me of their work and anticipated time to completion.  

i appreciate all the work on my behalf and wait on their response.  

What was the estimated time to completion?