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ozaz
Serial Port
Posts: 52
Registered: ‎03-10-2012
Location: GB
Views: 3,096
Message 1 of 9

Wifi keeps dropping on my X220

Hello,

 

I keep losing wifi on a regular basis (several times per day).

When this happens, an exclamation mark symbol appears on the wifi indicator in the taskbar.

I have not been able to identify a trigger. It happens randomly as far as I can tell.

I am sitting within 2 metres of the router. Non of my other devices experience connectivity problems. To reinstate wifi, I right click on the wifi icon in the taskbar and select troubleshoot problems. This always gets wifi working again.

 

A hardware scan in Lenovo solution centre does not flag up any problems.

Lenovo system update does not indicate any critical or recomended updates. There are 2 optional updates listed (Intel Rapid Storage AHCI Driver, ThinkVantage Active Protection System).

 

Here are some system and wifi details

X220

Windows 8.1 Pro

Wfif adapter: Intel Centrino Advanced-N 6205

Driver Provider: Intel; Date: 23/09/2013; Version 15.10.4.2

Router: Apple Airport Extreme

 

I would very much appreciate it if someone could help me identify and fix the issue.

 

 

Community SuperMod
Community SuperMod
Posts: 5,340
Registered: ‎06-26-2008
Location: US
Views: 3,069
Message 2 of 9

Re: Wifi keeps dropping on my X220

Please check the Power Management tab of your WNIC in Device Manager.

If the Allow the computer to turn off this device to save power setting is checked, try unchecking it.

 

You might also wish to doublecheck the details of the most recently released wireless driver:

http://support.lenovo.com/en_US/research/hints-or-tips/detail.page?&LegacyDocID=MIGR-77280

which list a December 2013 release date.

 

Regards.


Community GuidelinesSearchPrivate MessagingENDEESPTRUUACZ-SKMoto
PM requests for individual support are not answered. If a post solves your issue, please mark it so.

I am not a Lenovo employee.

ozaz
Serial Port
Posts: 52
Registered: ‎03-10-2012
Location: GB
Views: 3,052
Message 3 of 9

Re: Wifi keeps dropping on my X220

Thank you for helping.

 

With regard to the driver version, the package contains multiple version numbers but as far as I can tell, I am up to date. I have package version 16.6.0 installed (Intel ProSet/Wireless Software) & driver 15.10.4.2 (which seems appropriate for my card/OS combination according to this document: http://download.lenovo.com/pccbbs/mobiles/grw208ww.txt

Perhaps the december date is Lenovo's release date for the package, rather than the release date of the drivers in contains. Does that seem right?

 

I came across a thread on microsoft community (pertaining to this wireless card in various diffferent laptops) where users proposed several solutions (including the one you suggested).

http://answers.microsoft.com/en-us/windows/forum/windows_8-networking/wireless-connection-drops/eb6d...

 

I am currently working my way through these suggestions:

 

1. Disable "Allow the computer to turn off this device to save power" in the Wifi power management settings.

This did not solve the problem for me.

 

2. Swtich wireless mode from a/b/g to b/g in Wifi advanced properties.

This did not solve the problem for me.

 

3. Switch 802.n Mode to disabled in Wifi advanced properties

Currently evaluating this. If it works, it won't be a very satisfactory solution.
 
4. Remove Intel driver and install Windows 8 built-in driver.
Not yet tried.
Community SeniorMod
Community SeniorMod
Posts: 3,311
Registered: ‎12-01-2007
Location: US
Views: 3,029
Message 4 of 9

Re: Wifi keeps dropping on my X220

Hello,

 

Just to verify that it is not a problem with the router, have you verified that the router has the latest version of its firmware installed?  Also, have you tried connecting to a different router?

 

Regards,

 

Aryeh Goretsky

 



I am a volunteer and neither a Lenovo nor a Microsoft employee.

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ozaz
Serial Port
Posts: 52
Registered: ‎03-10-2012
Location: GB
Views: 3,021
Message 5 of 9

Re: Wifi keeps dropping on my X220

Hi,

 

It's been a while since I used this laptop for an extended period whilst connected to a different router, so I can't be sure if an interaction with my home router is involved. However, my home router does have its latest firmware installed and other wireless devices in the home don't seem to experience dropped connections.

 

I have now been using my x220 for 2 days with 802.11n mode disabled. I have not experienced a single drop-out. Usually I would get 5 or more per day. Obviously this is a workaround rather than a solution as I have to put up with slower wifi speeds.

Puppy
Bit Torrent
Posts: 1,822
Registered: ‎11-28-2007
Location: CZ
Views: 3,013
Message 6 of 9

Re: Wifi keeps dropping on my X220

In Windows 7 I set Windows power manager profile settings:

   Wireless Adapter Settings

   + Power Saving Mode

      + On Battery: Maximum Performance

      + Plugged in: Maximum Performance

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ozaz
Serial Port
Posts: 52
Registered: ‎03-10-2012
Location: GB
Views: 3,005
Message 7 of 9

Re: Wifi keeps dropping on my X220

Thanks. But I already have plugged in set to maximum performance, and I still experience the issue when I am plugged in.

hoverman
What's DOS?
Posts: 1
Registered: ‎03-24-2014
Location: USA
Views: 2,926
Message 8 of 9

Re: Wifi keeps dropping on my X220

I am a network consultant in the RTP area and we are experiencing this issue with ALL of our clients using Intel Wireless NICS on the X220. It happens in Win 8 and Win 7. Big pain in the butt. Waiting for Intel to get a new driver out as all this happened when new Intel Drivers were release via windows update. There is no fix for it other than to disable and re-enable the adapter.

Community SuperMod
Community SuperMod
Posts: 5,340
Registered: ‎06-26-2008
Location: US
Views: 2,920
Message 9 of 9

Re: Wifi keeps dropping on my X220

@hoverman...

 

Good afternoon and welcome to the community.

What version did Windows Update install to your systems? How does that compare to the version available via the X220 driver matrix: http://support.lenovo.com/en_US/research/hints-or-tips/detail.page?&LegacyDocID=MIGR-77280 ?

 

For reference, my Win7Pro64 X220 equipped with the Intel 6205 and running the v15.9.0.5 Lenovo-provided driver has been giving me rock-solid wireless network stability.

 

Regards.


Community GuidelinesSearchPrivate MessagingENDEESPTRUUACZ-SKMoto
PM requests for individual support are not answered. If a post solves your issue, please mark it so.

I am not a Lenovo employee.

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