RT-BE92U Persistent Thermal Zone Faults

[RicoSuave]

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.

[RicoSuave]

Update since the last time I posted. No change as of yet. Router is still having random drops in speed and I'm having to perform hard a reset almost on a daily basis. Logs still show continuous thermal faults and single core CPU spikes. Haven't heard back from ASUS since the last time I contacted them. I'm extremely disappointed from the lack of transparency from ASUS. I understand their mod teams on this forum can only do so much, but I find it unacceptable that ASUS hasn't put out an official statement regarding the plethora of issues this router seems to have. Clearly this isn't a hardware issue (or maybe it is, I wouldn't know cause again... ASUS refuses to communicate), but I find it most surprising that a team of network engineers can't seem to fix an issue that many here have provided feedback and data on. ASUS, do better. I expect a fix soon. @Aureliannn_ASUS 

[will_b]

I would love to contact Asus Support about this issue, but their online chat directs me to Best Buy. Not a fan of the level of support Asus provides.

[Harriscd]

I noticed that too. They know the serial # is from Best Buy so they tell you to contact the geek squad. I just put in zeros for the serial to bypass that nonsense.

[will_b]

Did they help you after you bypassed the serial # check?

[Harriscd]

No. They seem to be lower tier support copy/pasting canned responses. They suggested placing the router where it would get better air circulation, asked if I had updated firmware, and suggested I do a reset.  To be honest phone and email support got me further since I requested they escalate up a tier. I'm on -005 ticket and that's more from responses to my log uploads and from me asking for a status update. The 1 to 2 business days followup will not happen. At this point I'm beyond the return window at Best Buy so I'll see this through. The router has 10x the performance of my old Costco TP Link so I would love to get a stable system. As others have said I also had great ASUS gear previously but this experience is tarnishing that reputation with me.