WiFi Limited connection/No Connection: any troubleshooting ideas?

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I am using ASUS laptop Model: X401U- with windows 8.1, 64 bit. bought a year back, with Win 8.1 os.
The internet connection was very good with normal speed. Few days back when I installing a software, as advised therein I put off the net connection in my pc

and then installed that. Subsequently when I started/put on the internet WiFi, the connection is not working. Even if it is connected there shows only

“Limited” and the internet is not working at all. I tried all the trouble shooting methods as per the help page from ASUS and from the internet and got the

following results were appearing. And I am struggling for the last five days in vain.
The trouble shooting results are as follows:
1)This computer is set to manually connect to (Broad Band WIFi)
2)A net work cable is not properly plugged in or may be broken
3)Problem with wireless adopter or access point
The latest narrowed down results are:
4)Security or firewall settings might be blocking the connection-(Filter name: NatAle Port Filter)
5)The default gateway is not available.
I did all the procedures relating to the above 5 trouble shoot results. No use.
If the Ethernet cable is connected with the router/modem the internet is working well and also if we operate close to/near the modem without the Ethernet

wire/cord the WiFi is working.
But the WiFi is not working as in the past, if I work in my bedroom – 45 feet away from the modem. Other laptop and tablets, are working well with the WiFi,

except mine.
Up course I got the local telecom help also and of no cure for my PC.
Can you find any suggestion.
Just seek your suggestion of trouble shooting ideas ??
Please reply.

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What was the program that you installed that required you to disable the Internet connection ?

While you’ve said that you’ve done some things to troubleshoot the issue, have you tried your restore points prior to the program install http://pcsupport.about.com/od/windows-8/fl/system-restore-windows-8.htm

As it could be your AV program or the program you have installed, does wireless connectivity return when you boot up into Safe Mode with Networking ?

http://www.7tutorials.com/5-ways-boot-safe-mode-windows-8-windows-81

If it does then perform a clean boot http://www.eightforums.com/tutorials/23382-troubleshoot-problem-clean-boot-windows-8-a.html

The clean boot will isolate all of your Startup programs except your AV program and if the problem returns in a clean boot, that would be indicative that your AV program was the block.

This can be caused by a dodgy Definitions update or your AV program going awry.

To eliminate the Definitions, do a manual check for updates, otherwise with a 3rd party AV program – a reinstall would be needed.

If you are using Windows Defender and it appears that is the cause, boot up into Safe Mode, open a Command Prompt (Admin) and enter –

dism /online /cleanup-image /startcomponentcleanup

dism /online /cleanup-image /restorehealth

and then sfc /scannow to confirm all is well and let us know how you get on.

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Have you tried updating your wireless adapter driver ?

What was the program that you installed that required you to disconnect from the Internet ?

Have you tried your restore points prior to the program install http://pcsupport.about.com/od/windows-8/fl/system-restore-windows-8.htm and does your wireless work okay in Safe Mode with Networking ? http://www.7tutorials.com/5-ways-boot-safe-mode-windows-8-windows-81

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Thanks Mr Sudo15, I will try all the options mentioned by you & yet to try.

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Often simply disabling/re-enabling the WiFi (WLAN) connection will restore connectivity. Other times I have had to remove the WLAN connection then re-configure it. Since you say in your #1 post that you have Internet access when a LAN cable is connected then the problem concerns specifically your wireless connection – either a driver problem as Sudo15 suggested in his #2 post, or more simply disable/re-enable the connection.

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Dear Coochin, Thanks for your reply with suggestions. Will do that and try now.

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