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Both my router and my wireless networking card support the standards 802.11a/b/g/n but as I'm only getting speeds around 30-40 Mbit/s I suspect that it's the g standard being used instead of n. Now, I'd like to verify this somehow, so my question is: Is there a way (like a network diagnistics tool or the like) to find out which standard is currently used in the communication between computer and router?

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  • Instructions for either linux or windows would do, I have computers running Debian Wheezy, Windows XP and Windows 7
    – yzfr1
    Nov 18, 2012 at 11:04

1 Answer 1

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On Windows (tested on Win7, should be compatible with Vista back to Windows XP):

netsh wlan show interfaces

C:\Users\myUser> netsh wlan show interfaces

There is 1 interface on the system:

    Name                   : Wireless Network Connection 2
    Description            : DW1520 Wireless-N WLAN Half-Mini Card
    State                  : connected
    Network type           : Infrastructure
    Radio type             : 802.11g         <-- the currently negotiated value
    Authentication         : WPA-Personal
    Cipher                 : CCMP
    Connection mode        : Auto Connect
    Channel                : 11
    Receive rate (Mbps)    : 54
    Transmit rate (Mbps)   : 54
    Signal                 : 82%
    Profile                : xxxx

    Hosted network status  : Not started

On many Linux flavors (including Debian) use iwconfig.

Although it doesn't display a string such as "802.11n", it does display Bit Rate:54 Mb/s among other settings.

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