Am I connected to an ac network

sonnar

Reputable
May 10, 2014
3
0
4,510
recently i bought a D-Link DIR-850L AC1200 router, and a DWA-180 AC 1000 USB Wifi Adapter, i set up everything fine, but when i checked the connection, it says i am connected to an 802.11n network, i made sure to set the 5GHZ to 802.11AC only, my other computer, which doesn't have an AC capable receiver was able to see the network, but not connect to it, so is this just windows showing the wrong radio type? is there another way i can check if my connection is AC?

screenshot: http://i.imgur.com/0tadjaV.png
 
Solution
http://en.wikipedia.org/wiki/IEEE_802.11ac

If you get 650 then you definitely are getting 802.11ac.

The router and the nic card try to get the best signal that they can. It is very hard to get clean connections using 256qam which is one the key features of 802.11ac. 64qam is used for 802.11n. Your pc may indicate N because it fell back to 64qam.

Still if you look though this table the only way you can get 650 (160mhz channels are not avail) is to have a negotiated MCS of 7 using 80mhz channels...give 325 and then it is double that because of 2x2 mimo.

Be very careful about reading the marketing crap. 1200 is a fake out they add the 2.4 speed of 300 to the max 802,11ac of 867. 867 is the maximum it would ever negotiate...
802.11n is a subset and it will negotiate those rates sometime. If you force it to 80mhz it in effect forces it to 802.11ac since 802.11n does not run 80mhz. It may not work as fast though. You could have interference and the router is trying to avoid be negotiating down the connection. You can sometime tell by the speed it connects and then look those up in the table to see if it is a 802.11ac only rate.
 

sonnar

Reputable
May 10, 2014
3
0
4,510


the Roulter says i am in AC mode the speed looks to be above 802.11n too but only half of the maximum the adapter advertises at 5ghz (650Mbp), and i can't force it to 80mhz since it only goes to "20/40/80 auto"

UgCSQMz

2BmXL6E
 
http://en.wikipedia.org/wiki/IEEE_802.11ac

If you get 650 then you definitely are getting 802.11ac.

The router and the nic card try to get the best signal that they can. It is very hard to get clean connections using 256qam which is one the key features of 802.11ac. 64qam is used for 802.11n. Your pc may indicate N because it fell back to 64qam.

Still if you look though this table the only way you can get 650 (160mhz channels are not avail) is to have a negotiated MCS of 7 using 80mhz channels...give 325 and then it is double that because of 2x2 mimo.

Be very careful about reading the marketing crap. 1200 is a fake out they add the 2.4 speed of 300 to the max 802,11ac of 867. 867 is the maximum it would ever negotiate and this tends to require you sit on top of the router in most cases.
 
Solution