Sia wrote:
I have problems connecting to my access point in N mode. The only connection I can get is in G which gives me only 54Mbps. I'm using Linksys WRT300 wireless-N broadband router.
The 49645AGN card is 802.11n Draft 2 compliant and will only connect in ~270mbps link speed mode with an access point/routers which supports 2.4GHz and 5Ghz dual channel operation. Your WRT300N router only operates in the 2.4GHz bands, so you will need something like a WRT600N routers to achieve ~270Mbps operation.
Also, to achieve anything more than 54Mbps link speed you must be using WPA2 encryption on the link, as this a requirement of the 802.11n Draft 2 specification.
With a 49645AGN, and setting WPA2 encrytion, I achieve 130Mbps link speed with a Linksys WRT350N router in a locality where there are no a lot of 802.11g networks active. You may also be able to do that with a WRT300N (see below re interference from other networks). You might also want to see if LinkSys has any firmware updates for your router.
If you are in an area which has a lot of 802.11g networks active, you may not be able to get better than 54Mbps line speed under any circumstances. The issues with channel congestion in the 2.4Ghz band (where channles overlap and there are really only 3 non-overlapping channels) is what has driven the industry into going to the the 5Ghz band to achive reliable ~270Mbps links. There are 12 channels available in the 5Ghz band and they do not overlap.
The 802.11n standard is still in development and there is expected to be at least one more major draft released before a final specification is published!
Cheers,
Bill
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I don't work for Lenovo
billbolton
