I can also confirm that the spikes are gone with the 386.2_beta2-g2f7a878aad firmware.
Before I was seeing the spikes within 2 minutes after starting the Traffic Monitor.
And even the CPU temp is 2 degrees lower now (74°, before 76°).
You can try to update to the latest firmware ;)
Your firmware 3.0.0.4.384.32799 is from 2018/09/14.
The latest Version 3.0.0.4.386.40451 is dated 2020/10/22
Still with full reset (WPS) and with factory default settings on both Router and Node.
No internet for clients connected with 5 GHz and 2.4 GHz to the Node, without 5 GHz Guest Network enabled.
All clients connected to Router works fine.
Sent Feedback.
After about 3 days on this beta my log was flooded whit this.
Aug 1 15:15:22 kernel: Init chrdev /dev/detector with major 190
Aug 1 15:15:22 kernel: tdts: tcp_conn_max = 8000
Aug 1 15:15:22 kernel: tdts: tcp_conn_timeout = 300 sec
Aug 1 15:15:24 kernel: SHN Release Version: 2.0.1 890c91d
Aug...
Perhaps I nailed my problems.
I created a Guest Network on both 5GHz and 2.4GHz and set Sync to AiMesh Node to All.
Now both 5GHz and 2.4GHz clients can connect and have internet.
@ASUSWRT_2020 Feedback sent. Waiting for your feedback.
So far, with full reset (WPS) and with factory default settings on both Router and Node.
No internet for clients connected with 5 GHz to the Node, but clients connected with 2.4 GHz to the Node has internet.
All clients connected to Router works fine.
When the router reboots it has not got the right time from the NTP server, so look for a date change (May 5 in my case) in syslog. If you can't find any date change in the logs the router has not rebooted.
Om du vill ha hjälp i detta forum, så skriv på engelska (finns ju Google översätt m.fl.)
Har tyvärr inte Openvppn, så ingen hjälp från mig där.
Lycka till!