topic Re: RT-BE92U Persistent Thermal Zone Faults in Networking

RT-BE92U Persistent Thermal Zone Faults

RicoSuave — Sun, 05 Jan 2025 02:46:05 GMT

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.

Re: RT-BE92U Persistent Thermal Zone Faults

Lid — Sun, 05 Jan 2025 15:46:40 GMT

I am suffering the same thermal messages. They started today. This router has caused huge stress and problems since installing just before Xmas. I have a complex home setup and a factory reset is painful to keep having to do. I wish I hadn't bought it.

Re: RT-BE92U Persistent Thermal Zone Faults

RicoSuave — Sun, 05 Jan 2025 19:18:30 GMT

I'm having similar thoughts. My home setup isnt terribly complicated (only one AiMesh node on the network), but it's still incredibly frustrating to deal with having to reset multiple times a day.

Re: RT-BE92U Persistent Thermal Zone Faults

Aureliannn_ASUS — Mon, 06 Jan 2025 08:31:38 GMT

Hi @RicoSuave @Lid ,

We apologize for the inconvenience caused by the issue with your RT-BE92U router after upgrading to the latest firmware version (3.0.0.6.102_37435), which has led to the hotspot error message and a decrease in wireless network performance. To assist you further, we kindly ask you to confirm the following:

Have you tried performing a hard reset on the router? If not, please refer to the FAQ below for instructions on how to perform the reset. [Wireless Router] When Standard Reset Isn’t Working: Hard Factory Reset - Models list | Official Support | ASUS Global
Check network usage: Please verify if there are any other devices consuming excessive bandwidth, which could be causing a decrease in the wireless network download speed. You can check the network traffic on the router's management page to see if any devices are occupying significant bandwidth.
If you are using the 2.4GHz band, it might be limited by bandwidth and interference. We recommend switching to the 5GHz band to improve speed and reduce interference.
You can try clearing the system cache in the router's management interface, as this can sometimes resolve abnormal error messages or performance issues.

If these steps do not resolve the issue, please submit a system report at the time the issue occurs to help us diagnose and assist you further.

You can submit a feedback form Web GUI (http://www.asusrouter.com).
1. Connect your device to your router and log in to Web GUI(http://www.asusrouter.com)
2. Find “Administration,” and tap “Feedback”
3. Fill in your region, email (required field), ASUS Service No./Case No.(not required),Select the feedback problem and description.You can also write down comments/suggestions. More details might help us to analyze the issue you have encountered in a faster and more efficient way.
4. Read the agreement and click “I agree.”
5. Tap “Send” to submit your feedback.
Then provide the product serial number, the time of submitting the issue report, the email used for filling out the issue report, and the time when the issue occurred via private message.

Thank you.

Re: RT-BE92U Persistent Thermal Zone Faults

Lid — Mon, 06 Jan 2025 08:40:12 GMT

Yes I had to hard reset it yesterday however I do not consider doing this every few days a reasonable suggestion. Is your hardware faulty, the firmware or perhaps both? I cannot use my USB storage as any attempt to do so on your latest router triggers a host of issues. You cannot even map to the drive from a PC as the router blocks the connection. Yet the older AC68U happily ran two USB drives and I am currently setting it up again as the BE92U is so glitchy and unreliable. I am thoroughly let down by ASUS and deeply regret this purchase. You need to fix these issues ASAP if that is possible. You are welcome to my complete log files demonstrating this debacle.

Re: RT-BE92U Persistent Thermal Zone Faults

Aureliannn_ASUS — Tue, 07 Jan 2025 03:38:57 GMT

Hi @Lid ,

Thank you for your reply!

If you have already submitted a problem report, please kindly provide the following information via private message so we can forward it to our backend team for further investigation:

Product serial number
Problem report submission time
Email address used in the problem report
Time when the issue occurred
Device MAC address
Current network setup diagram

Thank you for your cooperation.

Re: RT-BE92U Persistent Thermal Zone Faults

Lid — Tue, 07 Jan 2025 07:07:33 GMT

Aureliannn_ASUS I have no means to private message you. Perhaps this is due to my new status on this group? Please advise or if possible provide an email address so I can send the relevant attachments.

Re: RT-BE92U Persistent Thermal Zone Faults

Aureliannn_ASUS — Wed, 08 Jan 2025 05:54:05 GMT

Hi @Lid ,

We apologize for any inconvenience caused.

If you need to contact me, we recommend sending a private message.

To send a private message, please follow these steps:

Click on my profile picture: Please click on my profile picture.
View profile: Click on "View profile".
Send a message: In the upper right corner of my profile page, you will find a "Send a message" button. Click on it to send me a private message.

If you encounter any issues during the process, we suggest you try the following:

Refresh the page: Please try refreshing the webpage. Sometimes temporary page errors can prevent features from working properly.
Use a different browser: You can try using a different browser (such as Chrome, Firefox, Edge, etc.). Different browsers may have different compatibility.

Thank you.

Re: RT-BE92U Persistent Thermal Zone Faults

gsotrout1 — Wed, 08 Jan 2025 19:26:25 GMT

Want to chime in that I am having the same behavior on my RT-BE92U with the reported repeating thermal error in the system log. I have submitted through the feedback tab though the router management webpage. Core 4 on system status is constantly bouncing and RAM utilization is basically pegged at 73% with minimal traffic.

Re: RT-BE92U Persistent Thermal Zone Faults

Aureliannn_ASUS — Thu, 09 Jan 2025 01:58:33 GMT

Hi @gsotrout1 ,

Thank you very much for your reply and cooperation!

To help us resolve your issue more quickly, please provide the following information via private message so that we can forward your problem report to the backend team for detailed investigation:

Product serial number:
Feedback submission time:
Email address used for feedback:
Time of the issue occurrence:
Device MAC address:
Current network topology diagram:

Additionally, we would like to further understand your issue:

Are there any other error messages besides the hotspot error message?
Have you tried performing a hard reset?
Did this issue only start appearing after updating to the latest firmware version (3.0.0.6.102_37435)?

Providing this additional information will help us more accurately locate the problem. Thank you.

Re: RT-BE92U Persistent Thermal Zone Faults

RicoSuave — Thu, 09 Jan 2025 02:20:27 GMT

PM sent

Re: RT-BE92U Persistent Thermal Zone Faults

Aureliannn_ASUS — Thu, 09 Jan 2025 09:38:28 GMT

Hi @RicoSuave ,

we have sent you a private message.

Please assist us by checking the message so that we can provide further assistance.

Thank you for your cooperation.

Re: RT-BE92U Persistent Thermal Zone Faults

Pokok — Fri, 10 Jan 2025 03:11:04 GMT

Having the same issue. Hard reset totally not work...

Jan 10 11:07:24 kernel: read_bpcm_reg_direct_keyhole: Wait for completion failed, devAddr 0x3, offset 24, idx 2
Jan 10 11:07:24 kernel: thermal thermal_zone0: Failed to get RAIL 0 temperature, ret=256
Jan 10 11:07:24 kernel: thermal thermal_zone0: Failed to get temperature, ret=-1
Jan 10 11:07:24 kernel: thermal thermal_zone0: failed to read out thermal zone (-1)

Re: RT-BE92U Persistent Thermal Zone Faults

changkai — Sat, 11 Jan 2025 15:39:45 GMT

I'm seeing the same problem! My router reboot seems to happen a few times a day. And here are some logs I gathered right before one of the reboots:

Jan 11 22:16:56 kernel: thermal thermal_zone0: Failed to get RAIL 0 temperature, ret=256
Jan 11 22:16:56 kernel: thermal thermal_zone0: Failed to get temperature, ret=-1
Jan 11 22:16:56 kernel: thermal thermal_zone0: failed to read out thermal zone (-1)
Jan 11 22:16:58 wlceventd: wlceventd_proc_event(656): wl0.3: Deauth_ind 10:5A:17:0B:83:88, status: 0, reason: Unspecified reason (1), rssi:0
Jan 11 22:16:58 wlceventd: wlceventd_proc_event(696): wl0.3: Auth 10:5A:17:0B:83:88, status: Successful (0), rssi:0
Jan 11 22:16:58 wlceventd: wlceventd_proc_event(656): wl0.3: Deauth_ind 10:5A:17:0B:83:88, status: 0, reason: Unspecified reason (1), rssi:0
Jan 11 22:16:58 wlceventd: wlceventd_proc_event(696): wl0: Auth 10:5A:17:0B:83:88, status: Successful (0), rssi:0
Jan 11 22:16:59 wlceventd: wlceventd_proc_event(656): wl0: Deauth_ind 10:5A:17:0B:83:88, status: 0, reason: Unspecified reason (1), rssi:0
Jan 11 22:16:59 wlceventd: wlceventd_proc_event(696): wl0.3: Auth 10:5A:17:0B:83:88, status: Successful (0), rssi:0
Jan 11 22:16:59 kernel: read_bpcm_reg_direct_keyhole: Wait for completion failed, devAddr 0x3, offset 24, idx 2
Jan 11 22:16:59 kernel: thermal thermal_zone0: Failed to get RAIL 0 temperature, ret=256
Jan 11 22:16:59 kernel: thermal thermal_zone0: Failed to get temperature, ret=-1
Jan 11 22:16:59 kernel: thermal thermal_zone0: failed to read out thermal zone (-1)
Jan 11 22:17:02 kernel: read_bpcm_reg_direct_keyhole: Wait for completion failed, devAddr 0x3, offset 24, idx 2
Jan 11 22:17:02 kernel: thermal thermal_zone0: Failed to get RAIL 0 temperature, ret=256
Jan 11 22:17:02 kernel: thermal thermal_zone0: Failed to get temperature, ret=-1
Jan 11 22:17:02 kernel: thermal thermal_zone0: failed to read out thermal zone (-1)
Jan 11 22:17:02 wlceventd: wlceventd_proc_event(656): wl0.3: Deauth_ind 10:5A:17:0B:83:88, status: 0, reason: Unspecified reason (1), rssi:0
Jan 11 22:17:02 wlceventd: wlceventd_proc_event(696): wl0.1: Auth 10:5A:17:0B:83:88, status: Successful (0), rssi:0
Jan 1 08:00:37 kernel: klogd started: BusyBox v1.24.1 (2024-12-08 22:32:46 CST)
Jan 1 08:00:37 kernel: Linux version 4.19.294 (root@asus) (gcc version 10.3.0 (Buildroot 2021.02.4)) #1 SMP PREEMPT Sun Dec 8 22:36:47 CST 2024
Jan 1 08:00:37 kernel: ARM_SMCCC_ARCH_WORKAROUND_1 missing from firmware
Jan 1 08:00:37 kernel: Kernel command line: coherent_pool=4M cpuidle_sysfs_switch pci=pcie_bus_safe console=ttyAMA0,115200 rootwait rng_core.default_quality=1024 mtdparts=brcmnand.0:2097152(loader),265289728@2097152(image) root=/dev/ubiblock0_4 ubi.mtd=image ubi.block=0,4 rootfstype=squashfs
Jan 1 08:00:37 kernel: bootloader version U-Boot2019.07(12/08/2024-22:34:48+0800)50404p3@523100
Jan 1 08:00:37 kernel: BoardId [RT-BE92U], NVRAM_ULBOARDSTUFFOPTION=0
Jan 1 08:00:37 kernel: size of sk_buff 576
Jan 1 08:00:37 kernel: offset of cb in sk_buff 400
Jan 1 08:00:37 kernel: OTP driver initcall
Jan 1 08:00:37 kernel: OTP driver scanning DT
Jan 1 08:00:37 kernel: Strap Register: 0x7fffebc3

Re: RT-BE92U Persistent Thermal Zone Faults

Chobra — Sat, 11 Jan 2025 23:26:31 GMT

I was about to give up as well but my issue has been fixed by doing the following:

Once you confirm you have the latest (3.0.0.6.102_37435) firmware installed

Power down the BE92U router, unplug from the wall outlet, let it sit for a few minutes for the cache to clear

Plug it back into the wall outlet, power back up, thermal issue no longer appears in the log, CPU core doesn't bounce from 50-100% anymore every 1-2 seconds

Re: RT-BE92U Persistent Thermal Zone Faults

RicoSuave — Sun, 12 Jan 2025 00:08:56 GMT

I'm pretty sure I've already done this at some point, but I'll try it again when I get home and report back in 24hrs to see if the system logs report anything.

Re: RT-BE92U Persistent Thermal Zone Faults

changkai — Sun, 12 Jan 2025 00:08:58 GMT

That's great to hear! Thanks for sharing! Does anyone know if there is a way to clear cache without powering down?

Re: RT-BE92U Persistent Thermal Zone Faults

RicoSuave — Sun, 12 Jan 2025 17:03:39 GMT

Update:

Powering down and letting it sit for over 45 min last night did not work. I checked the system log again this morning, and the faults are still asserting every 3 seconds exactly. RAM usage is at a constant 68% with little network activity. One thing I did notice just now that I didn't see before is what you said about the CPU bouncing from 50-100% 2 seconds. Core 2 on my router is doing that right now. Maybe I was so distracted with everything else wrong with the router and finding how to fix it that I didn't notice it before. @Aureliannn_ASUS Here are some more data points to add to this issue if you need them.

Re: RT-BE92U Persistent Thermal Zone Faults

Aureliannn_ASUS — Mon, 13 Jan 2025 02:57:31 GMT

Hi all,

thank you for the information you've provided.
We've passed your details on to our relevant backend team for analysis.
Please be patient and wait for any updates or messages from us.
Thank you.

Re: RT-BE92U Persistent Thermal Zone Faults

def2 — Mon, 13 Jan 2025 03:32:14 GMT

Wanna chime in as well, Just got the BE92U a week ago and have been having the same issue One core with extremely high usage, bouncing every 2-3 seconds and the thermal zone faults. This is despite minimal network usage and only 3 devices connected

Jan 12 22:27:17 kernel: read_bpcm_reg_direct_keyhole: Wait for completion failed, devAddr 0x3, offset 24, idx 2
Jan 12 22:27:17 kernel: thermal thermal_zone0: Failed to get RAIL 0 temperature, ret=256
Jan 12 22:27:17 kernel: thermal thermal_zone0: Failed to get temperature, ret=-1
Jan 12 22:27:17 kernel: thermal thermal_zone0: failed to read out thermal zone (-1)
Jan 12 22:27:20 kernel: read_bpcm_reg_direct_keyhole: Wait for completion failed, devAddr 0x3, offset 24, idx 2
Jan 12 22:27:20 kernel: thermal thermal_zone0: Failed to get RAIL 0 temperature, ret=256
Jan 12 22:27:20 kernel: thermal thermal_zone0: Failed to get temperature, ret=-1
Jan 12 22:27:20 kernel: thermal thermal_zone0: failed to read out thermal zone (-1)