I believe VPNs introduce latency and some providers are better at reducing it. I don't know how to avoid ExpressVPN affecting bufferbloat but perhaps someone here can offer some advice or correct me.
Forgive me for even suggesting it but are you testing for bufferbloat while connected to a VPN? I felt very stupid after realising I was doing that with ExpressVPN. My DSLreports bufferbloat rating was stuck on C no matter what I did with QoS. With the VPN disconnected and the rating became A...
Can anyone confirm if the RT-AC67U is the Asus HND platform, necessary for the cake-qos alpha branch? I've had a decent online rummage but it isn't clear. Thanks.
CPU Model
BCM470x - Cortex A7 ARMv7 revision 0 - Rev. c0 (Cores: 2)
For the record, this new firmware did maintain the low CPU load for a week. Or the second factory reset fixed it. Either way I'm sticking with 3.0.0.4.385.20433 despite the gimmicky gaming auto-port forward option.:rolleyes:
Thanks for your reply. I did think about the config file potentially being the problem but I ignored myself and carried on. It's good to hear it from a veteran in this forum so I will follow your advice for the next reset/initialise.
I'll see what happens with this new 3.0.0.4.385.20433 first...
I'm experiencing the same issue as OP with my RT-AC67U in a 1 node mesh configuration (AC1900 pair). Both CPU cores around 90% in the UI and [mtdblock3] showing around 42 % via top on the main router. Last night I did a 'Factory default' restore via the UI and checked the initialise box. I then...