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.
Monday
48 hours since updating to 9.0.0.6.102_37803. So far no thermal errors in my system log.
I have 100Mb download and 10Mbit
I started activating some features, IPv6 first. Within 1 hour of activating this feature I started getting the thermal errors. Hopefully this adds some helpful info for Asus to help resolve this issue. Watching cpu usage, no core is going over 25%.
Sunday
Well, add me to the list. Just set this up, updated firmware, and seeing the same thermal errors logged as mentioned in the thread. No issues with reboots yet.
Monday
New firmware just released 3.0.0.6.102_37500
Monday
Ah maybe the beta has just made general release. Doesnt solve the thermal issue but seems to solve CPU spiking
Monday - last edited Monday
Thanks for the heads up on the new firmware. I applied 3.0.0.6.102_37500 and surprisingly it resolved the thermal issue on my end which was being logged every 3 seconds or so on the previous version. I'm running 2.4, 5, and 6Ghz, MLO, AiProtection, and Time Machine. 32 clients currently connecting across the various bands.