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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.

75 REPLIES 75

Update from my last post (1/11), issue comes back after a day, a reboot is the only temp work around for now.  Hopefully the issue gets resolved in a future firmware update.

Same here. Issue still comes back in less than a day.

 

One interesting note is that when the router automatically restarts, the wired connections seem to be able to continue working. Only the wireless connections are dropped and need to be reconnected.

ASUS team, when can we get the firmware update to fix this highly frustrating issue?

Update: disabling wifi 7 on the router is my temp work around (until a new firmware update\fix) to deal with the cpu core bouncing from 50-100%.  A scheduled daily reboot will probably be a second temp work around but not my personal preference.

MLO disabled, wifi 7 enabled, cpu core bounces from 50-100% due to thermal faults in the log

MLO disabled, wifi 7 disabled, issue goes away for at least +2 days without a router reboot

Update: spoke too soon, core issue is back even with wifi 7 disabled