From AC87U to AC3100 - now bad bufferbloat

[highwire]

I had my RT-AC87U in AP mode without QoS enabled. Because of the issues I was having with the 5GHz band, I replaced it today with a RT-AC3100.

With the 87U, I always got an A or A+ for bufferbloat at the DSLReports speed test (this is wired, not wireless). Now with the 3100 (also in AP mode, wired), I consistently get terrible ping spikes during the upload portion of the test and I always get a C now. I'm running Merlin 380.59.




Any advice is appreciated. I want to leave QoS disabled if I can. Going back to the 87U is a no-go: that thing is terrible! Thanks!

 

[RMerlin]

The only solution is to use QoS. That's what it's intended for (better traffic management).

 

[highwire]

The only solution is to use QoS. That's what it's intended for (better traffic management).

Under Traffic Analyzer -> Statistic, I enabled the analysis slider (AP mode doesn't have the Adaptive QoS option).

And now...



... better!

 

[pete y testing]

AP mode doesn't have the Adaptive QoS option

and in AP its should not effect the test as nether of the devices are doing the routing the way you have them setup

have a read of

http://www.dslreports.com/faq/17883

as it explains the most common reasons for bufferbloat and how to fix it

so look at qos on the router that the asus in ap mode is connected to as suggested by merlin

pete

 

[highwire]

and in AP its should not effect the test as nether of the devices are doing the routing the way you have them setup

have a read of

http://www.dslreports.com/faq/17883

as it explains the most common reasons for bufferbloat and how to fix it

so look at qos on the router that the asus in ap mode is connected to as suggested by merlin

pete

Yup I agree, and that's what's weird about it. Right now I have both the 87U and the 3100 (and a AC66U) connected to a switch and then connected to the LAN port of the router. With basically identical setups on the 87U, 66U and the 3100, a wired or wireless connection to the 87U & 66U gives me A+/A on bufferbloat, but the same connection via the 3100 gives me a C. I'm at a loss to explain it. I've never needed QoS before since my connection is very fast and I rarely saturate it.