This widget could not be displayed.
This widget could not be displayed.
cancel
Showing results for 
Search instead for 
Did you mean: 

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.

131 REPLIES 131

dnloader
Star I

I am not having much hope on Asus actually putting out a new firmware before my Best Buy return window is up (about a week away).

I took one of my old Asus routers, an RT-AX3000 config file (after a hard reset and minimal config set) and loaded it into the RT-BE92U. I figured it could not hurt.

The CPU seemed to stabilized and the "thermal thermal_zone0:" errors went away.  Still a little laggy going through settings tabs though.

My main problem has always been that RT-BE92U reboots itself randomly, usually every couple hours and thought the thermal errors might be contributing to it (I’ll see if it Uptime is longer than 2 hours tomorrow morning). 

I am using it in a test environment now that only has 1 intel BE200(wifi7) client connecting and it has been about a week now and I still have not seen the Uptime over 2 hours. 

For the people that are losing connection I have read, is it dropping connection or is it rebooting itself also?

I will still take mine back if an official Firmware is not released soon, I don’t see a reason to sit on it until it is usable.

I currently have a RT-AXE7800 that has 40+ clients on it, mostly home automation stuff that does not reboot itself or lag or drop clients, and actually works quite well.

I wanted the Wifi7 connection bandwidth increase on 6GHz band, but I can wait and buy the RT-BE92U again in a few months if they fix/finish some of their firmware issues.

cowhow
Star II

@titan04 Scroll back through the thread.  I was given permission by Asus support to share the link to 37803.

@cowhow Ah, thanks.  Found it in another thread.

It brought my CPU usage down to respectable levels but didn't do anything for thermal errors.  I understand from @Aureliannn_ASUS that 37803 was targeting CPU usage so I assume another build is coming for thermal errors.

Yeah, thermal errors continue to persist and I'm having impacts to speeds.  Fingers crossed they'll get it together.  I really like this router's features.  I replaced a TP-Link with it that was doing just fine.