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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.

226 REPLIES 226

Lid
Star III

@cowhow where did you get 37522 from? I've been emailing the contact I had at ASUS but she's stopped replying!  I guess they never heard of testing before releasing this junk onto us 😞

That's what I did.  I have been testing beta builds for Asus and this was the latest one they sent me.  I'm sure there's newer builds available now as it's been a week or so since I received this one.  And it's not just you they have stopped replying to.  I haven't heard from them now since the email about this build.

WK
Star II

I, too, am down to 1 core with the 37523 update.  Is it possible to use the restoration process to get back to 37506?  If so, should I do that, or should I simply wait for Asus to post a newer update?

I manually uploaded 37506, then did factory reset.

just back to 37506 does not restore 1 core bug, you also have to do factory reset.

WK
Star II

I updated to the 37526 firmware on April 3 and was out of state when the router crashed on the 5th. My son (who lives next door) had to go into the house to reboot it. When I returned, I reinstalled my backup router and am waiting for the next firmware update. Asus, please fix this!