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RT-BE92U Persistent Thermal Zone Faults

RicoSuave
Star III

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.

205 REPLIES 205

fairfacts
Star III

The CPU maxing is fixed for me - although I dont have MLO configured

cowhow
Star III

37803/37500 resolved the CPU spiking for me.  My CPU usage on average stays below 25% with sporadic spikes of 50-55%.  I have all services activated including MLO.,  Memory usage is 80-85% which is expected considering the resource load.  The focus of this build was CPU performance.  I did need to perform a hard reset in order to improve CPU performance after the firmware install.  Thermal errors are another problem but I do know ASUS support is actively working on a firmware build to once and for all stop those errors.

stealththx
Star I

Still getting issues here on 37504. Rebooting automatically about once a day at this point. Thermal errors also popping up every second or two flooding the logs. In between reboots also getting the WLC_SCB_DEAUTHORIZE error (-30) errors on the mac address of the client that keeps randomly disconnecting. Tried the factory reset after the last firmware update too. Very frustrated with this and have until Friday to return it. 

I am also experiencing these issues on my device, random reboots maybe every few hours. 

I ended up opening a case with phone support and sending logs through the feedback tab of the web GUI. Hopefully will hear something back soon.