Very poor ping times on 3 units with various firmware

[headcase]

Ok, perhaps I'm either very unlucky with all three RT-AC66U units I bought this week, or I'm missing something... or perhaps there's a broader issue I haven't seen noted in the forums.

Here's the situation, which I can't seem to solve: using my 2013 MacBook Air (it has a broadcom chip btw), I'm experiencing extremely poor ping times via wireless that usually exceed 200ms and even worse, when pinging the router itself. Furthermore, the variability is incredibly high -- whereas I can usually average under 30ms with my older routers on wifi using the same channels, these AC66U's seem to vary in ping times based on how the damn wind blows! Heck, I've even seen ping times exceed 1800ms on many tests!

I've tried everything:

- updated to the latest ASUS firmware, as well as tried numerous versions of Merlin's firmware (and reset to defaults)

- changed the channels on both radios

- changed the power levels up & down on both radios

- repositioned the router and even using it within 5 feet distance

... yet I can't get consistent ping times anywhere under 200ms. What gives? I live in a home where there isn't much wireless congestion, and furthermore, my other routers are performing much better in the same setup. So its something to do with these AC-66Us not talking well with my MacBook Air, unless others are also experiencing poor ping times on wifi.

Here's one example (blech):

64 bytes from 192.168.0.229: icmp_seq=1 ttl=64 time=1049.457 ms
64 bytes from 192.168.0.229: icmp_seq=2 ttl=64 time=48.282 ms
64 bytes from 192.168.0.229: icmp_seq=3 ttl=64 time=1035.578 ms
64 bytes from 192.168.0.229: icmp_seq=4 ttl=64 time=34.575 ms
64 bytes from 192.168.0.229: icmp_seq=5 ttl=64 time=1033.713 ms
64 bytes from 192.168.0.229: icmp_seq=6 ttl=64 time=32.812 ms
64 bytes from 192.168.0.229: icmp_seq=7 ttl=64 time=1032.255 ms
64 bytes from 192.168.0.229: icmp_seq=8 ttl=64 time=31.143 ms
64 bytes from 192.168.0.229: icmp_seq=9 ttl=64 time=1030.009 ms
64 bytes from 192.168.0.229: icmp_seq=10 ttl=64 time=29.707 ms
64 bytes from 192.168.0.229: icmp_seq=11 ttl=64 time=1031.039 ms
64 bytes from 192.168.0.229: icmp_seq=12 ttl=64 time=30.842 ms
64 bytes from 192.168.0.229: icmp_seq=13 ttl=64 time=29.202 ms

--- 192.168.0.229 ping statistics ---
15 packets transmitted, 14 packets received, 6.7% packet loss
round-trip min/avg/max/stddev = 29.202/464.237/1049.457/494.647 ms

Am I the only one experiencing slow wireless ping times on this model? Can others let me know what their ping times are, when pinging locally? (eg. if your router is at 192.168.1.1, ping that address and let it run 10+ pings and provide any results, and NOT some address on the Internet).

Thanks for any input.

 

[chunlianghere]

u might wan to post your settings and professional settings.

 

[headcase]

Never mind -- I was perusing the Apple support forums, and come to find that the recent software driver patch that Apple released for occasional dropped wifi connections on the 2013 MacBook Airs with 802.11AC, is now causing wireless latency issues for many.

Now I'm just debating whether to roll back my Mac OS X to before the update (which I didn't really need to even install), or save myself the trouble and wait until Apple releases another fix. Grrr...