RT-BE92U - On-going random losses of Internet/WAN access

[AndrewMcN]

I've had the RT-BE92U for a few weeks now and a couple of times a day it simply stops routing DNS WAN traffic and the Wi-Fi networks also stop routing. All Internet access grinds to a halt because of this. Sometimes it returns to normal on its own but today it was so inconvenient that I got it to reboot via the web UI. It's then fine again for several hours.

It's like the unit itself enters some kind of semi-hung/crashed state. I'm thinking there's some kind of memory leak or that the RAM capacity is insufficient. It runs for several hours and then begins going faulty.

I am 26 years into an advanced IT solutions architecture/engineering career covering pretty much all kinds of infrastructure. So, the most I'm guilty of is not trying the basics.

I am able to ping externally, however I tend to find that I cannot get DNS traffic to pass and that includes direct queries of external DNS services, e.g. 8.8.8.8 (I can ping this guy).

The Wi-Fi networks can't even reach the router itself. I have to go to my wired laptop to engage with the router. The router web UI responds normally. The system log just seems to show either long pauses between log entries or errors about wireless client disconnects.

This kind of error seems to be common in the log just now:

kernel: WLC_SCB_DEAUTHENTICATE_FOR_REASON err -30
kernel: WLC_SCB_DEAUTHORIZE error (-30)

Could be red herrings but they always seem to be around when the crashes happen.

I have a lot of smart devices. It says I have a total of 54 clients but the vast majority of those will generate very little traffic.

I use Sky Stream. So, there can be a lot of throughput there. I also watch a lot of Twitch. Again a lot of data passing through for that. Nothing I wouldn't expect this router to handle though.

I have AiMesh up and running with two nodes.

I use the Time Machine backup capability with a USB drive attached. There's an hourly backup.

I have the AiProtection turned on. DoS protection enabled.

I also have the DNS over TLS enabled opportunistically but I've tried putting this off and it doesn't help.

I just fear that the hardware spec isn't able to handle the workload.

It just seems like the firmware isn't stable enough yet. I need to decide if I should be returning this or just be patient and wake for the next firmware updates.

Anyone else with this router experiencing issues despite factory resetting?

[windowsdan]

This will work for about 7-10 days until the LUT builds up in the table and you start getting issues again.

If only factory resetting fixed the issue that would be too easy. Plus surely we're all on Merlin, right?? Why wouldn't you be? Unless they are just Mesh nodes cause then it's better to be on stock Asus, as the AiMesh system is proprietary and not open to the Merlin team. 

[alienfrenzyno1]

I'm using stock firwmare for longer than 10 days now on most recent firmware 3.0.0.6.102_37563 . I have mlo set on one ssid with 5Ghz and 6Ghz. I have another ssid for 2.4Ghz and another IOT ssid for older devices. It's been stable now for 12 days 4 hour(s) 33 minute(s) 54 seconds. 

The only issue I've faced is that my phone (Honor Magic 6 Pro) will disable trying to connect to wifi every so often until I turn wifi off and on again on the phone. I have turned off wifi+ today and so far this seems to have solved that issue. But other than that everything else has been stable for me. No other devices are having any issues. 

I was thinking about changing to Merlin firmware today but for my needs I'd rather just not touch it now while it's stable. Can finally just forget about this and let it tick along in the background. 

[Moein-danesh]

Okay ... I am using MLO , 5g and 6g ( on MLO)

Latest version .

After turning off Roaming Assist It never reset in a week and I have very stable speed on all devices and specially MLO function working just fine.  Getting 1.6gb on s25 Ultra( My internet is 2Gbps) 

I also use AI protection and DNS and QOS, never face any issue after turning off the roaming assist on 5gz and 6ghz surprisingly getting very strong signal as well.

[Ayame]

Same, 10 day stable working. MLO enabled and I have 2 AiMesh node (I just needed to turn off the Roaming Assist).
(I'm on Merlin, but same results)

[senyk92]

Tested both roaming assistant on and off with merlin. merlin w/ roaming assistant on had stability issues over time. when I turned roaming assistant off i had tons of latency issues, it was horrible, tested with pingplotter.  Overall cant recccomend this unit yet with any build.