01-04-2025 06:46 PM
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.
Tuesday
Im on 3.0.0.6.102_37500 and 3.0.0.6.102_37500-g4c425bc_1088-g416ff_BB0B and i still have the thermal fault errors. Thinking since yours disappeared maybe i'll try a hard reset to see if that does anything.
yesterday
I've also just acquired a new RT-BE92U this past weekend, and have since been facing high cpu, thermal errors, and network instability. Automatic Firmware update to 37435 made some cpu improvements, followed by the autoupdate to firmware 37500 yesterday, followed by a hard reset made more improvements with the network instability and constant reboots. At this point the thermal events go away once rebooted, but eventually they do come back, which may be related to usage. It currently has 13 hours uptime where previously it was constantly rebooting itself anywhere between 6-20ish minutes.
yesterday
yeah. did that yesterday. Seems stable but the thermal errors are back within 24 hours of applying the upgrade. I cleared the log last night and came back this morning and its full of thermal errors so I cant even see when it started
yesterday
AiMesh ZenWiFi BD4 using wireless connection for Mesh to RT-BE92U
Upgrade from beta on 2/18/2025
Thermal errors start appearing 2/19/2025 - feedback sent to router_feedback@asus.com
Case No=N2502017157-0001
Router Firmware version Serial Mac
RT-BE92U 3.0.0.6.102_37500 T1IG7L200600CY7 60-CF-84-3A-6C-10
ZenWiFi BD4 3.0.0.6.102_56745 S9IG7M8032144D7 CC:28:AA:5E:56:E0
Internet Speed: 100Mb down, 10Mb up
IPv6 on – default changed from beta
UPnP off - change from default
WPS off - change from default
yesterday
Turned off wifi 6Ghz turned off for 3 minutes then back on, thermal messages gone, we shall see how long this lasts