Is no longer able to connect to any wireless network...

I use a laptop Dell Studio 1555 with card WiFi Intel Wifi Link 5100 AGN and Windows 7 64-bit. Last night I started having problems with my wireless connection. I assumed it was just the router cause one time and one time even if I restart it cause it starts to act up. So I rebooted the router and it seemed to solve the problem for about an hour. Then it starts again, first with the connection without access to the internet while remaining connected. Tried to restart the router again, no solution. Then, it wouldn't even connect to the signal. So I tried the windows diagnostics, who said he had a problem with the router. However my Motorola Droid X 2 was connected and had no problems. So I tried a long list of things to fix.

Tried:
1 reboot the router (yet..)
2 do a full power cycle, including the modem and the laptop (no solution..)
3 turn off wifi via switch and software (no solution...)
4 system restore before the latest updates installed (no solution...)
5 has tried to update the drivers through Windows update (said they were up-to-date)
6 tried to connect to other wireless signals around (wouldn't connect to any network)
7 delete saved records wireless info (no solution..)
Gave up to decided to go to the bed and fix it today. Still not a not connect even after being stop all night. Went to school (University) and tried to connect to the wifi. He worked initially for about 15 minutes, and then he started again to ruin. I tried different things to fix it still do not work. So I plugged it into an Ethernet Jack, which works fine and went to the site of Intel to see if it was updated since I check not earlier, who were there and drivers downloaded. They have installed and seemed to fix the problem again for about 30 min. Then he went down again.
Also tried:
1 install the updated Intel drivers (fixed for about 30 minutes then stopped)
2. completely removed the wireless drivers and reinstalled (did nothing)
3. diagnostics running I tried again (Nothing)
4 tried to look through various settings, IPv4, 6, 6 had caused problems a long time ago, other properties (could not find anything that fixed something)
5. constantly search online options (have not found anything useful)
If after trying just about everything I can think of to solve the problem, I still have to fix anything. And only using a cable connection is not an option. Anyone else have any suggestions or know what I can do to solve the problem? I'd appreciate any help I can get. Thanks advance. If you need more system card just ask.
System:
Dell Studio 1555
Intel Core 2 Duo 2.20 Ghz, 4 GB RAM
Windows 7 Home Premium 64 - bit SP1
Wireless card: Intel Wifi Link 5100 AGN
Driver version: 14.3.2.1
Home router: Cisco-Linksys WRT320N Dual - Band Wireless - N Gigabit Router

Hello

Thanks for posting the question. I've surely you will help find a solution on the issue.

This looks like a problem with the wireless card. I suggest you borrow a USB wireless adapter and check if it works or not.

If so, you can contact dell for warranty replacement or watch to replace the adapter.

Reference:

http://support.Dell.com/support/topics/global.aspx/support/DellCare/contact_us?c=us&l=en&s=Gen

Hope this information helps. Please come back if you have more questions about the issue.

Tags: Windows

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