100Mb/s on cable, 30Mb/s on WiFi, two different routers - same problem

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Ferrugius

Commendable
Oct 11, 2016
4
0
1,510
Hey guys!

I got Cisco EPC3928AD from my ISP and when I connect with cable I get 100Mb/s, but only 30Mb/s on WiFi. I can't change anything in its configuration since it's not mine, so I connected my own router to it - Asus WL-500W and I get exactly the same results. I've already changed the channel to the one that is the least used in my area but it didn't help. My WiFi card is Intel Wireless-N 2200 (dual stream 2.4Ghz 802.11n).

Is there anything else I can do to get more speed?

Thanks in advance and sorry for any gramma mistakes (English is not my native language).
 
Solution
B
If you really want go see what speeds the connection is actually negotiating with your nic card. Then look up 802.11 MCS values. What you are trying to figure out is if you are running mimo, how wide the channels are and how good your signal really is. These tables let you guess that. It is not all the obvious until you do it a few times.

Still there is nothing you can really do. Your option on wireless are change the radio channel 1,6,11 are best. Maybe force the bandwidth to 20mhz only.

I did notice that your stuff was negotiating to WPA rather than WPA2. There are restrictions on using mimo if you are not using wpa2 but only some device actually enforce that rule. If possible run only WPA2....but that may have been...
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bill001g

Titan
Aug 9, 2012
28,325
2,755
125,640
You will never get anywhere close to the numbers the wireless manufacture say. Even the very fastest routers/nic card using 4 antenna streams can barely get 100m on the 2.4g band using 802.11n. To get faster you must use 802.11ac.

30m is a little low. Hard to say what exactly is causing it. Most time is it some form of interference. You would want to test directly next to the router. Still with a device the manufacture say is "300m" you likely would not get more than 50m.
 
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F

Ferrugius

Commendable
Oct 11, 2016
4
0
1,510
I think I found the reason of my problems - although I've set router to use only 802.11n it's still using b and g instead. I'm posting screenshots below. Any idea how to fix it?

LyyUarV9.png

5VWOyvLl.png
 
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bill001g

Titan
Aug 9, 2012
28,325
2,755
125,640
To a point that is strange since you have it locked the router to only run 802.11n.

I would use the ISP router it is much more current implementation of 802.11n. Your asus router is a old "draft" version which many times were not 100% compatibility. If the cisco device looks the same then I would check the driver settings on your computer.
 
Upvote 1 Downvote
B

bill001g

Titan
Aug 9, 2012
28,325
2,755
125,640
If you really want go see what speeds the connection is actually negotiating with your nic card. Then look up 802.11 MCS values. What you are trying to figure out is if you are running mimo, how wide the channels are and how good your signal really is. These tables let you guess that. It is not all the obvious until you do it a few times.

Still there is nothing you can really do. Your option on wireless are change the radio channel 1,6,11 are best. Maybe force the bandwidth to 20mhz only.

I did notice that your stuff was negotiating to WPA rather than WPA2. There are restrictions on using mimo if you are not using wpa2 but only some device actually enforce that rule. If possible run only WPA2....but that may have been because you were using the asus which came out before wpa2 was the standard.

You only other option is looking for newer drives for your nic card.

There are many things that can cause wireless problems but extremely few things you can actually change.
 
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