I don't get the full mbps from my router/card, RT-AC66U and pce-66 (1300mbps)

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Hey, I am currently connected to a router(AC66U) that is supposed to give me 1300 mbps in the 5 ghz channel. But in the network card utility it only tells me that I am connected at 702 mbps. I tried different channels from channel 36-48, but I either get the same result or worse, at its best I get 877mbps at the worst it falls down to 500mbps.

My signal strenght is exellent and I currently have the router upstairs, just right above me. I also tested it while the router was kissing my network card (PCE-66) card but I still only got 702-877 mbps from that.

Router website: https://www.asus.com/Networking/RTAC66U/
Network card website: https://www.asus.com/Networking/PCEAC66/

Both router and network card fully updated.
 
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So it's supposed to be like this?
Cause as I recall it I should be able to run at 1.3gbit and not 702 mbit as show in the picture under.
8ou9.png



Click here for image in full size: http://img818.imageshack.us/img818/366/8ou9.png

Sometimes it increases to 877: http://img16.imageshack.us/img16/8653/iwmx.png
 
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I also have the PCE-AC66 Wireless Card (RED ONE) from Asus and the RT-AC66R Router and I am getting the EXACT SAME 702mbps. Also, their tech told me that windows will never recognize it as an AC connection which is why your wifi thing in the bottom right will show it as a 802.11N connection. I'm not thrilled it isn't showing 1300 or whatever, but to be honest, this 702 has been BLAZING and at times it spikes up to around 850. All of my giant 1080 3d movies have streamed flawlessly since I upgraded so I can't really complain.
 
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The wireless card says you are getting 700Mbps, but again this is 'theoretical'. They are known as 'data rates' and does not reflect what you actually get in reality, due to:

- Wireless Half Duplex operation
- Interference
- Router backplane bottlenecks


Always remember that you get around 35-45% of the data rate. This is a dual band router with 900Mbps on the 5GHz AC, so you are realistically getting around 350Mbps to 500Mbps throughput on the 5GHz AC band
 
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This is actually supposed to get 1.3Gbps on the 5ghz and 450Mbps on the 2.4Ghz...not sure where you are getting 900mbs?
 
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We can only guess exactly what asus is up to. Since the 802.11ac standard is getting close to final but not yet set asus may have used features that they put off into the next version.

It would be really nice if the displays showed qam-256 5/6 mimo 3x3 instead of 1300m. So to figure out what is going on you need to do this yourself and look the numbers up in the 802.11ac tables that have been published. So you take 702 and divide it by 2 and by 3 (you don't know i f you get mimo 3x3 or 2x2). so you get
234 and 351

The options you get for that are

64-QAM 2/3 using mimo 3x3 and wide guard bands
256-QAM 3/4 using mimo 2x2 and wide guard bands.

For 877 2x2 mimo does not match so the only options you have are
64-QAM 5/6 mimo 3x3 and wide guard bands
64-QAM 3/4 mimo 3x3 and narrow guard bands.

The only way to get 1300 is to get
256-QAM 5/6 mimo 3x3 and narrow guard bands.


The QAM stuff is negotiated based on the quality of signal the devices detect. You should be able to force it to use only narrow guard bands which will help a bit. The mimo is also negotiated. If it can do it will otherwise it won't

Pretty much you are getting too much interference to get any higher.

I would only use the lowest possible channel numbers. This is the only block of 4 channels that you can use at full power and not be subject to the rules that require your router to disable channels if it detect weather radar. Some countries there is a block at the very top that works also. But at most there are only 2 blocks of 4 channels. When the newer standard comes out that lets you use 8 instead of 4 EVERYONE will have to use the same groups which will be very bad for interference.

 
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Btw, I did transfer 120GB worth of movies from my laptop to my desktop (ssd to pcie ssd) wirelessly at a rate of 400mbps...it was ridiculously fast, i think the limiting factor was the laptop ssd. the laptop also only has a N card rated for 450mbps but it was right next to the wireless router
 
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161 is in the top band that is ok to use in the USA. Not sure they say you should set it for 155. But the 4 top channels are 149,153,157,161

You want to check to see that nobody is using any of those 4 channels. This is the same problem as people who try to use 40mhz in the 2.4g. If someone is using one of the 2 channels you are many times better off backing down to 20mhz.

A large part of the limitations in real life use is the 1300 is the total bandwidth both upload and download combined. Whenever you transfer data there is always some data going in the reverse direction to confirm receipt of the data. In addition you take the risk of getting the confirmation message coming back being transmitted over the top of the data going the other way which will cause errors and slow you down.
 
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