WiFi problem after upgrading to Windows 8.1 Lenovo R400 ThinkPad

I have this problem after updating to 8 to 8.1
Right after updating to 8 to 8.1, all of a sudden my wifi stops working. I used my philips external wifi usb stick and now I'm able to get the internet going.
However if I disconnect my philips usb I no longer get the internet because the built in wifi that came with the R400 ThinkPad no longer works. I went through the device manager and under properties it tells me, 'Device not working properly' however it is up to date.
Im Running Windows 8.1 64bit Laptop Lenovo R400 ThinkPad

Hi Matti,
Thank you for replying back!
I suggest you to reinstall the Windows 8.1, as all the windows driver will not update, if you have upgraded the Windows 8 to Windows 8.1.
Please download Windows 8.1 separately and reinstall the OS, I hope this may resolve the issue.
Note: I am not suggesting for clean installation, only reinstalling the same OS.
Do not update the drivers from ThinkVantage system update utility. I suggest you to uninstall the current drivers and download the drivers manually for Windows 8.1 and install it.
Below is the link to enter the downloads page and download updates accordingly, please click on "Select Product" then in "QUICK PATH" enter the MTM no. select the exact model.
http://support.lenovo.com/en_US/downloads/default.page#
Hope this helps!
Best regards,
Hemanth Kumar
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Similar Messages

WiFi problem after upgrading to Windows 8.1

So I have this problem since November 2013 after updating to 8 to 8.1
Right after updating to 8 to 8.1, all of a sudden my wifi stops working. I used my old Belkin external wifi usb drive and now I'm able to get the internet going.
However if I disconnect my Belkin usb I no longer get the internet because the wifi adapter that came with the H520 Desktop no longer works. I went through the device manager and under properties it tells me, 'Device not working properly' however it is up to date.
Anybody else had this problem and had it fixed?
Solved!
Go to Solution.

hi dudameister,
Thanks for Posting!
Open Device Manager and uninstall the WLAN 802.11 driver
"Place a check on the Delete driver software for this device "
the hit on scan for Hardware Changes
Delete the driver again until it does not show you a check box for deleting driver software
then Restart the computer.
Now install this
Realtek 8188EE Wifi
Then try reconnecting again.
Hope this helps
Cheers!
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
Follow @LenovoForums on Twitter!

U410 touch WiFi issues after upgrading to windows 8.1

Hi all,
I have a U410 touch and yesterday I upgraded to windows 8.1
I have major WiFi issues.
connection drops after a few minutes giving limited. troblesshooting resets the adapter saying ''the default gateway is not accessible '' is fixed. But after a few minutes the problem comes back. and it goes like this forever.
I have the Intel Centrino N-2230 and I installed the driver I found here (15.10.3.2).
I''ve tried to uncheck the power management option but the problem is still there.
I also have other issues with the dolby system (I see others have the same problem )and my touch screen is not working.
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Hi-
I am also running into the same issue with my Lenovo U410 and it is really frustrating. I also have Centrino Wireless chip with driver version 15.10.3.2 and I have windows 8.1
I bought the laptop from Costco and was having similar issues. I sent it back to Costco Concierge who apparently replaced the wireless chipset on this laptop but now I am getting this issue.
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I Updated my iPad 2 to ios6 then day iOS6 was released, ever since then i have been unable to connect to the wifi. I've reset the network setting and the wifi works for about 5 minutes until i go on any apple app ( itunes, app store, maps etc). I've reset the Network settings more than once, I've turned the HTTP proxy to auto, I've pressed Renew Lease, I've unplugged the wifi, and I've pressed Forget this network. Reluctantley i updated my ipod touch 4 gen to see if iOS 6 was the problem and I now have the exact same problem on my ipod touch. Someone Help!!

iOS 6 Wifi Problems/Fixes
Fix For iOS 6 WiFi Problems?
http://tabletcrunch.com/2012/09/27/fix-ios-6-wifi-problems/
Did iOS 6 Screw Your Wi-Fi? Here’s How to Fix It
http://gizmodo.com/5944761/does-ios-6-have-a-wi+fi-bug
How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6
http://www.iphonehacks.com/2012/09/fix-wi-fi-connectivity-issue-after-upgrading- to-ios-6.html
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http://www.youtube.com/watch?v=XsWS4ha-dn0
Apple's iOS 6 Wi-Fi problems
http://www.zdnet.com/apples-ios-6-wi-fi-problems-linger-on-7000004799/
~~~~~~~~~~~~~~~~~~~~~~~
Look at iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
WiFi Connecting/Troubleshooting
http://www.apple.com/support/ipad/wifi/
How to Fix: My iPad Won't Connect to WiFi
http://ipad.about.com/od/iPad_Troubleshooting/ss/How-To-Fix-My-Ipad-Wont-Connect -To-Wi-Fi.htm
iOS: Connecting to the Internet
http://support.apple.com/kb/HT1695
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Additional things to try.
Try this first. Turn Off your iPad. Then turn Off (disconnect power cord for 30 seconds or longer) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
Change the channel on your wireless router (Auto or Channel 6 is best). Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
Another thing to try - Go into your router security settings and change from WEP to WPA with AES.
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
If none of the above suggestions work, look at this link.
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
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Unable to Connect After iOS Update - saw this solution on another post.
https://discussions.apple.com/thread/4010130
Note - When troubleshooting wifi connection problems, don't hold your iPad by hand. There have been a few reports that holding the iPad by hand, seems to attenuate the wifi signal.
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

Problems after upgrading to Windows 10

Hi, I have updated my z50-70 to Windows 10 from Windows 8.1. I am facing following problems- 1. Brightness keys are not working, also can't find brightness settings anywhere, What to do?2. Dolby Digital application is misssing after upgrade.Please help. Thanks & Regards,Rishikesh

Hi Rishikeshs,
Welcome to the Forums
As per the query we understood that you are facing issue with brightness adjustment not working in your Lenovo Z50-70 laptop.
As you have updated to windows 10, there is a dedicated board for windows 10 hence request you to refer the same.
Below is the link for the windows 10 board.
https://forums.lenovo.com/t5/Windows-10/bd-p/EN-win10
Best regards,
Ashwin. S

[Z50-70] Problems after upgrading to Windows 10

Hi, I have updated my z50-70 to Windows 10 from Windows 8.1. I am facing following problems-
1. Brightness keys are not working, also can't find brightness settings anywhere, What to do?
2. Dolby Digital application is misssing after upgrade.
Please help.
Thanks & Regards,
Rishikesh
Moderator comment: Subject edited. Model added.

Hi Rishikeshs,
Welcome to the Forums
As per the query we understood that you are facing issue with brightness adjustment not working in your Lenovo Z50-70 laptop.
As you have updated to windows 10, there is a dedicated board for windows 10 hence request you to refer the same.
Below is the link for the windows 10 board.
https://forums.lenovo.com/t5/Windows-10/bd-p/EN-win10
Best regards,
Ashwin. S

785GM-E51 BIOS problem after upgrading to Windows 8

Randomly (it seems) I can't enter my BIOS or use the F11 key to choose the boot device when starting or restarting my 785GM-E51 based system - but only running Windows 8 or 8.1.
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Hello again and thanks for your reply,
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X230 Wi-Fi problems after upgrading to Windows 8 Pro

Hi,
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Hi,
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Best regards,
erico
****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
2015 Microsoft MVP - Windows Experience Consumer

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This question was solved.
View Solution.

Hello Ken1766
Are you using IE10 in the Metro UI or on the Desktop? Try using it in the opposite interface and see if the problem persists.
IE10 is in the directory C:\Program Files\Internet Explorer\iexplore.exe
Let me know if both experience the same problem.
Don't forgot to say thanks by giving "Kudos" to those that help solve your problems.
When a solution is found please mark the post that solves your issue.

NI IMAQ 1409 problem after upgrade to windows 7

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Hello Arend,
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CLD, CTA
If someone helped you, let them know. Mark as solved and/or give a kudo.

Problem after upgradation to windows 10

i have installed windows 8.1 and and now i am unable to vary the brightness. help me to overcome the overcome the problem

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WiFi problem after upgrading to Windows 8.1 Lenovo R400 ThinkPad

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