RT-N66U QOS on 120Mbit WAN - fast enough?

[jauling]

Hey fellas,

I've been using the RT-N66U for a couple years now as a router and wifi AP. Not too long ago, I upgraded my cable connection to 120Mb/12Mb. I use QOS on this router, so I can guarantee a 192Kbit upstream to my shoutcast server, as well as provide rudimentary QOS for browsing, torrents, and VOIP/video chats.

I definitely am not a QOS expert, but it does not seem like the N66U is hitting close to the maximums I defined in my QOS rules when I do a speedtest. I read somewhere that this router maxes out at around 100Mbit when QOS is enabled (maybe because CTF is disabled?).

Can someone help me figure out if the throughput I'm seeing are due to my QOS rules or if its a hardware/resource limitation on the N66U? FWIW, it doesnt seem like the CPU is loaded that heavily...

Any recommendations on a faster ASUS router that can handle QOS for a 120Mb downstream, if that is the direction I need to go?

 

[RMerlin]

QoS does indeed cause CTF to be disabled. Basic throughput of this router is around 150 Mbps, so somewhere just below that would be with QoS enabled.

For a router with a faster CPU, look at the RT-N18, RT-AC56, RT-AC68 or RT-AC87U as alternatives that should be able to hit close to 300 Mbps without CTF enabled.

 

[sm00thpapa]

I'm running .3754 and have a 150Mbps connection. Hard wired I can get more than the 150Mbps but wirelessly on 2.4 and 5GHz I can only manage maybe 90Mbps. Is that all I can get wirelessly from this router?

 

[moonman]

Depends on many things. If your client (computer) supports 3mimo streams on 5ghz (max 450Mbit), in best case scenario you can get ~220Mbit/s. At 300Mbit/s connection rate - best case scenario is ~140Mbit/s. Now start considering things like interference and signal strength loss at a distance/through walls and the best case scenario is never achievable. The best I've seen on my network was about 110Mbit/s throughput @ 300Mbit/s connection rate at 5Ghz being 3m away from the router and without any other 5Ghz wifi APs in range.