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You are here: Wireless Wireless Reviews ASUS RT-AC66U 802.11ac Dual-Band Wireless-AC1750 Gigabit Router Reviewed - WLAN Perf-11ac, Max 11ac

ASUS RT-AC66U 802.11ac Dual-Band Wireless-AC1750 Gigabit Router Reviewed - WLAN Perf-11ac, Max 11ac

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Wireless Performance - Draft 802.11ac

As noted earlier, draft 11ac mode tests were run with a pair of AC66's with one set to Media Bridge mode. The connection on channel 36 was secured with WPA2/AES and 80 MHz bandwidth mode was set on the 5 GHz radio to kick in the draft 11ac mode.

Throughput vs. location plots, including the NETGEAR R6300 and Buffalo WZR-D1800H, show that the pair of AC66's outperform the other two draft AC routers in the lower signal level test locations C and D. And, in a first for draft 11ac products, I was able to run tests in our weakest signal test location F—with over 50 Mbps of throughput!

Draft 802.11ac throughput vs. location - downlink

Draft 802.11ac throughput vs. location - downlink

Draft 11ac uplink performance was even more impressive, with much higher throughput than obtained with the Buffalo and NETGEAR products and 28 Mbps of throughput in location F.

Draft 802.11ac throughput vs. location - uplink

Draft 802.11ac throughput vs. location - uplink

Here's the IxChariot plot for downlink. Throughput is surprisingly stable, although there are plenty of large dropouts.

Draft 802.11ac throughput IxChariot plot - ASUS RT-AC66U - downlink

Draft 802.11ac throughput IxChariot plot - ASUS RT-AC66U - downlink

It's a bit hard to see in the uplink plot below, but it takes a few seconds at the start of the location A and C tests to ramp up to the high levels that produce the 350+ Mbps average thoughput for the one minute runs.

Draft 802.11ac throughput IxChariot plot - ASUS RT-AC66U - uplink

Draft 802.11ac throughput IxChariot plot - ASUS RT-AC66U - uplink

Maximum 11ac Throughput

I ran the multi-pair test to see how throughput scales as more test scripts are run simultaneously. The plot below shows that the AC66's performance is tuned so that almost 450 Mbps of throughput is available to a single up/downlink test pair.

Draft 11ac throughput vs. traffic pairs

Draft 11ac throughput vs. traffic pairs

Since throughput starts out so high, it doesn't increase as much as the NETGEAR and Buffalo products do as additional up/down pairs are added. Throughput plateaus at around 525 Mbps with four test pairs.

I should note that throughput distribution among the pairs is very unequal, both pair to pair and between up and downlink. A glance at the IxChariot plot below for four pairs illustrates what I mean.

Draft 11ac throughput vs. traffic pairs IxChariot plot - 4 pair

Draft 11ac throughput vs. traffic pairs IxChariot plot - 4 pair



Related Items:

ASUS RT-AC66U Wireless Retest
Cisco Linksys EA6500 Review - Part 2
ASUS RT-N66U and Linksys EA4500 / EA4200v2 Wireless Retest
NETGEAR R6300 Wireless Retest
Slideshow: Netgear WNDR3300 RangeMax Dual-Band Wireless N Router

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Great router with Merlin FW

Overall rating: 
 
5.0
Features:
 
5.0
Performance:
 
5.0
Reliability:
 
5.0
Reviewed by Jerry
April 15, 2014
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Steady as a rock , reaches every corner of the house including basement . Merlin fw works really well . Updates are a breeze , I do them over wireless network , not 1 problem yet in over 1 year of use and lots of updates . Great throughput over 5 ghz steady 7-9 MBPS transferring files from laptop to NAS . AC works well but I think the client is flaky ,an Edimax usb 3.0 .
Overall good router , not sure the AC router offers much over the N-66 , yet .

 

Merlin firmware

Overall rating: 
 
5.0
Features:
 
5.0
Performance:
 
5.0
Reliability:
 
5.0
Reviewed by Håkan
January 29, 2014
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I try many different wifi routers and this is the best i tester, I use the merlin build firnmware.

 

Asus Network products s*cks

Overall rating: 
 
1.0
Features:
 
1.0
Performance:
 
1.0
Reliability:
 
1.0
Reviewed by Bharath
October 08, 2013
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I had this product for atleast 5 months now having issues. I did contact Asus for help on transfer rate and buggy firmware, transfering a file of 1GB used to take approx 1hour from the storage attached to the router, signals on 5GHZ is not that great. Asus took over remote access to the router and were not able to find out what was the problem as well. I did move the router to the service center and there they could not as well fix it, but a refund was offered on the product exclusive of tax that was paid.

Anyone who wants to buy this product please think twice it is not worth the price.

 

Cannot seem to get dual-band working

Overall rating: 
 
2.3
Features:
 
3.0
Performance:
 
1.0
Reliability:
 
3.0
Reviewed by Bob
May 31, 2013
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I only get ~11MB/s bandwidth shared between both the 5GHz and 2.4GHz frequencies.

With two separate wireless n devices, I would expect to get about 10MB/s on each channel. However, very disappointingly, I only get 5MB/s for each device on each of the two frequency ranges.

Is my device broken or is this to be expected?

N.B. I have the device in access point mode.

 

NOT STABLE !!

Overall rating: 
 
2.3
Features:
 
4.0
Performance:
 
2.0
Reliability:
 
1.0
Reviewed by Claus Christiansen
February 21, 2013
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It's was a great router, but and there are a BIG but. It is not very stable. The first couple of weeks the range and speed are excellent. Then it suddenly begin to loose both range and speed, especially on the 5 GHz band, but there are also loads of examples that it has the same problem on the 2.4 GHz band.
One solution, for me at least, has been to restart the router every day.

 
 
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