WIFI connects to the router but no internet connection on 15R 3521

Hi, the new laptop 3521 with Win7 Pro the WLAN will connect to the selected wireless router but is unable to establish an internet connection.

WLan Driver 1703 was duly installed once the Chipset driver was installed, as recommended.

Fortunately, other mobile devices to connect to the same router. Ubuntu on this laptop was also happy to connect to internet on WIFI, only Win7 fails.

Disabled the Win7 firewall, but no change. This connection, unidentified in the network and sharing Center.   Router SSID etc have been entered correctly. Remove the WLAN profile and not reinstated, no change.

Tried to connect to another router wireless with the same result. I can only run this laptop on wired connection to the router.

I am at a loss as to what other steps I could take to correct this key WLan / internet access.

Any suggestions would be welcome. See you soon.

Hi love,

Thanks for your advice. I deleted the profiles (two identical found!), also removed all entries of all WiFi routers in Win 7 registry. This step has not resolved the problem.

However, I found the reason for the connection problem and the solution is the following:

In the wireless connected (TP-Link) router, wireless--> channel settings is set to 'AUTO' (which is to select automatically 20 MHz or 40 MHz).

In the device driver Dell WLAN 1703 (properties--> advanced--> bandwidth 802.11 n, the value has been set on (ie the Atheros is the default!))  "20 MHz.

Once I put the option value "20 MHz / 40 MHz Auto", the connection comes to life.

What a relief!

The question is now completely resolved. Thank you to all who have contributed.

Better with respect to Dzsino.

Tags: Dell Products

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