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Wifi Problem

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2 replies to this topic

#1 Kripa


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Posted 16 September 2011 - 05:14 AM

Few days ago I changed my laptop's Lcd cover and bezel. I have dell inspiron 6400. After this replacement my laptop would not connect to my wifi network. Infact I am getting a message " no wifi networks found". This laptop has Intel Pro/wireless 3945 ABG connection. when I ran the manual diagnostics tool the scan test failed. However the hardware test, driver test and radio test results are o.k. My LAN connection is fine and it is connecting to the internet, but wifi connection still says "no wifi networks". I tried with WZC but the result is same. I checked the antenna cable, it is connected properly. I unseated the WLAN card and fixed it back. I have uninstalled the network adapter( 3945 ABG) to install it back. The other laptop in my home connects to the wifi network. Apart from this I have about a dozen of wifi networks from the adajacent apartments, but my computer says "no networks found". Prior to this fix it was showing about 18 available networks. I believe my system is working fine and I do not have any malware or spyware problem. Can anyone provide a solution?

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#2 TheShooter93



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Posted 16 September 2011 - 06:27 PM

Try installing the latest drivers off the manufacturer's website.

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#3 FrankOtheMountaiN


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Posted 16 September 2011 - 07:47 PM

Does your laptop have a physical switch on it to turn the wifi on and off? Perhaps you did not seat the switch properly on reassembly. (or it's set to off?)
Is there an indicator light on the laptop that says "wifi"? Is it lit up? You can toggle on/off mode by hitting function key and F4 on a Dell usually.

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