Choose style:

Author Topic: Less than expected WiFi speed with 802.11 AC  (Read 25405 times)

0 Members and 1 Guest are viewing this topic.

Offline takisot

  • Backer
  • *
  • Posts: 66
  • Thanks: 0
  • Registered : 07/10/2014
    YearsYearsYearsYearsYearsYearsYears
Less than expected WiFi speed with 802.11 AC
« on: December 22, 2014, 08:25:23 am »
I recently tested my network wifi speed by using SpeedyNet app for IOS and Mac and I could not exceed 20 Mbps between two AC equipped devices (iPhone 6 and MacBook Pro Retina latest generation). Is this normal?
Please note that the test was performed right next to Almond+ which is updated with the latest firmware (the same for the apple devices).
I tried both 5ghz and 2.4 ghz connections.
When I try the same test in my office's network (which has an apple N wifi router) I get around 30Mbps.
Shouldn't I have much faster connection with the Almond+?

Thanks

Offline takisot

  • Backer
  • *
  • Posts: 66
  • Thanks: 0
  • Registered : 07/10/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Less than expected WiFi speed with 802.11 AC
« Reply #1 on: December 22, 2014, 08:37:28 am »
Also, on another note, it takes forever to stream video via Airplay from any IOS device to apple TV. That was not the case with my previous router.
Is there something needing to be fixed?

Offline anthonylavado

  • Backer
  • *
  • Posts: 12
  • Thanks: 0
  • Registered : 08/08/2013
    YearsYearsYearsYearsYearsYearsYearsYears
Re: Less than expected WiFi speed with 802.11 AC
« Reply #2 on: December 22, 2014, 09:08:03 am »
How did you conduct the test? Remember that any online speed test will show you the speed of your internet connection, not necessarily the speed of your connection to your router

On your Mac, you can quickly check by doing the following:
1) Hold down the Alt/Option key
2) Click on the Wi-Fi symbol in the menu bar

You should see more statistics come up for your connection to your router, and one of them is labelled "Transmit Rate". That's the one you're really looking for.

Offline takisot

  • Backer
  • *
  • Posts: 66
  • Thanks: 0
  • Registered : 07/10/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Less than expected WiFi speed with 802.11 AC
« Reply #3 on: December 22, 2014, 09:21:50 am »
I know about Transmit Rate, but the app I used is considered to be more accurate and it of course measures the speed of my network (specifically between the two devices) and not of the internet connection.
For more info: https://itunes.apple.com/us/app/speedy-net/id451107779?mt=12
http://mauriciosantos.net/speedy-net.html
« Last Edit: December 22, 2014, 09:23:53 am by takisot »

LGNilsson

  • Guest
Re: Less than expected WiFi speed with 802.11 AC
« Reply #4 on: December 22, 2014, 10:33:19 am »
20Mbps or 20MB/s ?
20Mbps is not normal, that's for sure.
Keep in mind that your iPhone is a 1x1 device whereas your notebook is 3x3, so it's not exactly an ideal test setup.

Offline takisot

  • Backer
  • *
  • Posts: 66
  • Thanks: 0
  • Registered : 07/10/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Less than expected WiFi speed with 802.11 AC
« Reply #5 on: December 22, 2014, 10:50:16 am »
Mbps. And I managed once to achieve 30Mbps from Mac to iPhone.

LGNilsson

  • Guest
Re: Less than expected WiFi speed with 802.11 AC
« Reply #6 on: December 22, 2014, 11:04:39 am »
And the other way around?

Offline j8048188

  • Backer
  • *
  • Posts: 108
  • Thanks: 0
  • Registered : 12/08/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Less than expected WiFi speed with 802.11 AC
« Reply #7 on: December 22, 2014, 11:30:04 am »
Another thing to check is what your Wireless AC settings are at, specifically the width setting. You'll get better throughput at a higher width. Try setting your 5 ghz network to be 11ACVHT80.
See here for more details: http://wiki.securifi.com/index.php?title=Wireless_Mode_Definitions_-_Almond%2B

Offline takisot

  • Backer
  • *
  • Posts: 66
  • Thanks: 0
  • Registered : 07/10/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Less than expected WiFi speed with 802.11 AC
« Reply #8 on: December 22, 2014, 12:17:48 pm »
And the other way around?
Around 15-20 Mbps

Offline takisot

  • Backer
  • *
  • Posts: 66
  • Thanks: 0
  • Registered : 07/10/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Less than expected WiFi speed with 802.11 AC
« Reply #9 on: December 22, 2014, 12:22:24 pm »
Another thing to check is what your Wireless AC settings are at, specifically the width setting. You'll get better throughput at a higher width. Try setting your 5 ghz network to be 11ACVHT80.
See here for more details: http://wiki.securifi.com/index.php?title=Wireless_Mode_Definitions_-_Almond%2B
Thanks , I will try. What speed should be considered normal for AC?

Offline j8048188

  • Backer
  • *
  • Posts: 108
  • Thanks: 0
  • Registered : 12/08/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Less than expected WiFi speed with 802.11 AC
« Reply #10 on: December 22, 2014, 12:24:47 pm »
What speed should be considered normal for AC?
On that wiki article there's a table at the bottom that shows the max speeds.
Spatial Streams   20MHz           40MHz           80MHz
1                           86 Mbps      200 Mbps   433 Mbps
2                            173 Mbps   400 Mbps   866 Mbps
3                          288.9 Mbps   600 Mbps   1.3 Gbps

Offline xaminmo

  • Backer
  • *
  • Posts: 45
  • Thanks: 2
  • Registered : 13/10/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Less than expected WiFi speed with 802.11 AC
« Reply #11 on: December 22, 2014, 06:00:51 pm »
Are you on current firmware?  I think in R66-R68, the 2.4GHz WiFi drivers were stuck in 20MHz channel width, but that shouldn't affect 5GHz.

Interference could be at play.  I have a neighbor using wide channels on an old-firmware NetGear router, and it clobbers everything 2.4GHz in my house (bluetooth, WiFi, had to move to 5GHz cordless phones, etc.)  In theory, it should affect all routers, but if the other router is locked to a set channel, and under heavy use, the Almond+ might be stuck using something less than ideal.

Can you try using iperf or netperf between two laptops?

What about between the A+ and a laptop?  OpenWRT has netperf, so it should be available if not already there.

Can you test the router in a different building, or at least  several tens of meters away, maybe on a different floor?
Geek, pilot, cyclist, parent.

LGNilsson

  • Guest
Re: Less than expected WiFi speed with 802.11 AC
« Reply #12 on: December 22, 2014, 07:35:14 pm »
It's possible something is wrong with the hardware as those are extremely slow speeds. Can you please contact the support team so they can have a look see.

Offline takisot

  • Backer
  • *
  • Posts: 66
  • Thanks: 0
  • Registered : 07/10/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Less than expected WiFi speed with 802.11 AC
« Reply #13 on: December 23, 2014, 04:17:58 am »
Another thing to check is what your Wireless AC settings are at, specifically the width setting. You'll get better throughput at a higher width. Try setting your 5 ghz network to be 11ACVHT80.
See here for more details: http://wiki.securifi.com/index.php?title=Wireless_Mode_Definitions_-_Almond%2B

I did that and the speed improved a bit but not much. I noticed though that there is a discrepancy between the link speed (TxRate) which is about 878Mbps and the actual connection speed which is about 32 Mbps. That makes me think that there is maybe some interference although I am the only 5GHZ network in the area. Is there a chance that the network speed is downgraded by its weakest link (for example a connected old apple TV which is 802.11 g)? How can I make sure that this is not a hardware problem?
Thanks




Offline takisot

  • Backer
  • *
  • Posts: 66
  • Thanks: 0
  • Registered : 07/10/2014
    YearsYearsYearsYearsYearsYearsYears
Re: Less than expected WiFi speed with 802.11 AC
« Reply #14 on: December 23, 2014, 04:22:35 am »
Are you on current firmware?  I think in R66-R68, the 2.4GHz WiFi drivers were stuck in 20MHz channel width, but that shouldn't affect 5GHz.

Interference could be at play.  I have a neighbor using wide channels on an old-firmware NetGear router, and it clobbers everything 2.4GHz in my house (bluetooth, WiFi, had to move to 5GHz cordless phones, etc.)  In theory, it should affect all routers, but if the other router is locked to a set channel, and under heavy use, the Almond+ might be stuck using something less than ideal.

Can you try using iperf or netperf between two laptops?

What about between the A+ and a laptop?  OpenWRT has netperf, so it should be available if not already there.

Can you test the router in a different building, or at least  several tens of meters away, maybe on a different floor?

Hi, I have the latest firmware. Interference could be indeed a cause for this. I will try running Iperf between two computers. Luckily I recently bought an apple mac mini which is also AC enabled. I did not understand though how to do this between A+ and the macbook. Can you elaborate?
EDIT: I also noticed that iperf seems a bit complicated. Isn't there any other simpler method to test the actual transfer speed?

Thanks
« Last Edit: December 23, 2014, 04:31:35 am by takisot »

 

Page created in 0.078 seconds with 18 queries.