Advanced-N 6200 in T510 will not connect 802.11n

I have just received my T510 with the 6200 wireless adaptor.  This adaptor will not connect using wireless-n, only wireless-g.  I am running Windows 7, 64 bit.  Other devices that I have are connecting using wireless-n to the same router.
The driver is the latest (13.3.0.24) and 802.11n mode is shown as "Enabled".   There does not seem to be a choice for wireless-n in the "Wireless Mode" selection list.
Is it possible to get this to work with wireless-n?  If so, any help would be appreciated.

gws wrote:
Other devices that I have are connecting using wireless-n to the same router.
This is a well known problem with 802.1n kit, that unfortunately many of the WiFi kit vendors are genrally reluctant to warn users about.
The Intel 6300 WiFi card is fully 802.11n compliant, so it is not the issue.  Basically that means it should (and will) only connect in 802.11n in the 5GHz band WiFi band on its default settings. 
It will also generally connect in a "Super-G" like mode (about 130Mbps raw link speed) in the 2.4Ghz band to a router than offers 802.11n connectivity solely on the 2.4GHz WiFi band, but this is not a fully specified mode of operation.
From draft 2 of the 802.11n spec onwards, the use of 40Mhz bonded chanels in the 2.4GHz WiFi band has been strongly discouraged, as it is generally anti-social in areas with a lot of 2.4GHz WiFi networks operating concurrently.
Your other devices may be operating on the now long out of date initial 802.11n spec, which permitted 40Mhz bonded channel operation in the 2.4Ghz WifI band.... before wide-spread practical field use indicated how disasterous it was for many existing 802.11b and 802.11g WiFi users.
Essentially, you need to get a dual band router that supports 802.11n operation in the 5GHz Wi Fi band (which by the way is actually around 5.8GHz).
Cheers,
Bill
I don't work for Lenovo

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