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5 Posts

11-05-2008

US

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  • Posts: 5
  • Registered: ‎11-05-2008
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Connection speed on Intel 4965AGN

2009-04-30, 3:09 AM
I have a T61 running XP with the Intel 4965AGN WiFi adapter.  I am connecting to an AirLink 101 300N router configured as WPA2 PSK with AES encription to support 300 Mbps connections.  My wife's desktop connects at 300Mbps using an AirLink 101 300N USB adapter, and my old T21 connects at 300Mbps using and Airlink 101 300N cardbus adapter.  The Intel adapter doc implies it should work at 300Mbps, but connects at 150Mbps. I have looked at the driver parameters and installed the latest Intel drivers from the Lenovo site.  Any suggestions on what I can do to get the Intel 4965AGN to connect at 300Mbps.
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1960 Posts

12-02-2007

AU

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  • Posts: 1960
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Re: Connection speed on Intel 4965AGN

2009-04-30, 10:15 AM

eghuff wrote: 

I am connecting to an AirLink 101 300N router .


Your Airlink operates only in the 2.4~2.5GHz WiFi band.  A fully 802.11n Draft 2 compliant device, like the Intel 4965AGN, will only connect at ~270Mps for devices which support operation in the 5GHz WiFi band.

 

When running in the 2.4~2.5GHz WiFi band they will only connect at ~130Mbps.

 

If you want to achieve ~270Mbps connections with fully 802.11n Draft 2 compliant devices you need a router which supports 5Ghz band operation, or supports dual band operation in both 2.4Ghz and 5GHz WiFi bands.

 

Running 40Mhz bonded channels in the 2.4~2.5GHz WiFi band to achieve ~270Mbps operation is generally problematic and it is prone to have mutual interference with 802.11b/g WiFi traffic in the vicinity.

 

Cheers,

 

Bill

------------------------------
I don't work for Lenovo
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