Dell N5010 Wireless Card conflict

Just installed Windows 7 Professional-64 bit on my colleagues Dell N5010 laptop. When I check the device manager, the WLAN kept showing a conflict symbol. So spent hours figuring why the wireless driver is not being installed.

I went to the Dell website (which obviously not helpful enough) to download all possible drivers but it kept saying that it is not compatible with the device. I tried Intel Wireless Pro to automatically detect the brand or model of the wireless adapter/card but it says that it's not installed.

After countless of trial (forgive my exaggeration, I almost gave up) I came across dell community forum and found a response thread, (thanks man for your goodwill) posted his accidental discovery and solution about the problem. Refer to this site(http://en.community.dell.com/support-forums/network-internet-wireless/f/3324/t/19334541.aspx)

I had to do the same by manually installing the driver R252544 (Go to Device Manager, right click the conflict, choose manual update and browse to the place where the driver was extracted) and after that it worked like magic.

wifi channel

Had just installed and configured 5 routers in accomodations under the company. One particular router was acting strange. Despite that all lights are on, the signal is broadcasting, wireless adapters doesn't detect the SSID.
In an article I read about wireless troubleshooting, changing the channel can help.
So I went to configuration and changed channel from 1 to 3 and in seconds, worked like a charm.

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