topic Wireless ThroughPut issue in Wireless

Wireless ThroughPut issue

Zohaib Khan — Sun, 04 Jul 2021 08:19:07 GMT

Hi all,

I have LAP Air-CAP3602E-x-k9 connected with WLC 2504 802.11a/n and 802.11b/g/n both are enabled. i am sitting next to my AP and i am only user who is connected to AP. When i copay a file it should give me at least more then 100Mbps for 802.11bn but in my scanrio i am gettinh 1 to 3 Mbps. i checked i am connected to 802.11bn and WPA and AES is enabled. what is the problem hhow i can get more then 100Mbps at my WLAN.

Re: Wireless ThroughPut issue

George Stefanick — Sun, 24 Nov 2013 17:19:57 GMT

First check to make sure your client is configured for 802.11n , make sure the WLAN has WMM enabled, also make sure you are bonding ..

Sent from Cisco Technical Support iPad App

Wireless ThroughPut issue

Sandeep Choudhary — Sun, 24 Nov 2013 19:36:55 GMT

HI Zohaib,

George is spot on............

1. You need to go to wireless>802.11a/n>High Throughput (802.11n) and enable 11n mode. Also do this under radio 802.11b/g/n.

2. Use wpa2/aes

3. Enable WMM on the WLAN SSID

Chec it out this docs: http://www.cisco.com/en/US/products/ps6366/products_tech_note09186a0080a3443f.shtml

Reagrds

Dont forget to rate helpful post.

Wireless ThroughPut issue

Leo Laohoo — Sun, 24 Nov 2013 20:55:57 GMT

What is the model of the wireless NIC card? And what is the version of the driver the NIC is running on.

Re: Wireless ThroughPut issue

Zohaib Khan — Mon, 25 Nov 2013 08:58:55 GMT

Wirless card: Dell Wireless 1702 802.11b/g/n

Version is 9.2.0.115

I am also using iPad and iPhone as well but cant able to get more then 65mbps

Re: Wireless ThroughPut issue

Zohaib Khan — Mon, 25 Nov 2013 11:08:09 GMT

Hi Sandeep,

Thanks for your response i done the same but while copying a file from file server which is connected to my switch i can only get 2 to 2.5 MB/s or 25Mbps aprox what is reason?? and if i check my wirless adapter speed is mention there is 144Mbps

Re: Wireless ThroughPut issue

Rasika Nayanajith — Mon, 25 Nov 2013 17:45:14 GMT

I am also using iPad and iPhone as well but cant able to get more then 65mbps

This may be true & it is depend on client limitations, iPhone is supporting 1 Speacial stream (SS) & may be same with your iPad as well. See the below data rates table.If it is 1SS, 20MHz bandwidth & GI=800ns max you would get is 65Mbps.

If your iPhone is a newer model (like iPhone5 onwards) it will support 5GHz, 40MHz bandwidth. So if you have configured your WLC to support 40MHz [802.11a > RRM > Dynamic Channel Assignment (DCA) -> Channel width 40MHz ] you could get max 150Mbps

Refer this for iPhone5 spec in detail.

http://blogs.aerohive.com/blog/the-network-revolution/apple-iphone-5-wi-fi-specs

If you want to get higher data rates you should have client that supports multiple Spacial Streams (like MacBookAir 2SS, MacBookPro 3SS)

HTH

Rasika

***** Pls rate all useful responses ****

Re: Wireless ThroughPut issue

George Stefanick — Mon, 25 Nov 2013 19:21:27 GMT

According to this link if it correct the Dell nic you have is a 1x1:1

http://wikidevi.com/wiki/Dell_Wireless_1702_802.11n/BT3.0_Mini-Card

This means at best you will only see 144 PHY, because its only 1 spatial. Your actual throughput should be around 70 mbps. If you arent seeing 70 mbps can you explain how you are measuring this performance. You can use Zap or Iperf for example. I would put a device right off the switch in server mode and put the wireless laptop in client mode and post the results.

Here is beta testing Zap (Window Side) and ZapPerf (Mac Air Side) with 11ac on the 3700. The Air is a 2x2:2 and the channel bonding is 80Mhz. But also note the 802.11n results as well.

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Wireless ThroughPut issue

Leo Laohoo — Mon, 25 Nov 2013 20:34:58 GMT

Version is 9.2.0.115

That's an old driver version. For Windows 7, the latest driver is version is 9.2.0.310.