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?
31 Answer
On Windows (tested on Win7, should be compatible with Vista back to Windows XP):
C:\Users\kuba>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 startedOn 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.
