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10 Posts

04-22-2013

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x1 extreme finicky 2.4ghz wifi

2019-02-21, 3:09 AM

Hi there, both my wife and I have the same x1 extreme 20mf. Mine has trouble communicating with the 2.4 ghz wifi in our home, my wife's does not. Mine can connect but communication is extremely slow. Connecting to the 5ghz in our home is fine on both computers. Mine even has trouble with 2.4ghz when setting up a clean windows 10 install after formatting. Here are the things I have already tried:

  • I have already tried replacing the wifi card in my computer but the new one performs in the same way. I would suspect that the antenna is shorting out somewhere (I don't actually know if that is a thing).
  • I have tried several driver versions 20.70 and 20.50 and 20.120 all same behavior (my wife's is 20.70 and hers works fine).
  • I have tried all the solutions at https://pcsupport.lenovo.com/us/en/solutions/ht502846 and none worked for me.

I am staying in East Africa until late May so I can't send my computer off to get fixed, but I'm open to any other solutions. Even if there's a guide on how to check the antennas I'd be willing to give that a try. Thanks in advance for any help.

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392 Posts

03-03-2017

JP

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Re: x1 extreme finicky 2.4ghz wifi

2019-02-28, 5:58 AM

Dear customer,

Have you tried the below ?

  - If you used Bluetooth audio, turn off Bluetooth

  - disable bluetooth device on device manager

  - in order to identify the symptom caused by H/W or SW, swap your storage device by your wife's storage device.

      if the symptom happens by SW, symptom will go with your storage device.  If the symptom by HW, symptom will stay on your X1 extreme.

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10 Posts

04-22-2013

US

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  • Posts: 10
  • Registered: ‎04-22-2013
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  • Message 3 of 8

Re: x1 extreme finicky 2.4ghz wifi

2019-02-28, 14:21 PM

Thanks for your suggestions Rydeen. I've now tried all your suggestions but it doesn't help, even with the other harddrive. Is there a motherboard issue that could cause this? some type of electric noise?

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392 Posts

03-03-2017

JP

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  • Message 4 of 8

Re: x1 extreme finicky 2.4ghz wifi

2019-02-28, 23:17 PM

Dear customer,

>I've now tried all your suggestions but it doesn't help, even with the other harddrive. 

I'd like to confirm the sypmtom still happns on your X1 Extreme when you swap the harddrive, am I correct?
If so, the most suspect is H/W issue on your machine except WiFi card (you already tried to change the card), noise, anntena, etc...

I suggest to request service ticke to lenovo to investigate & fix it when you are back.

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52 Posts

10-11-2018

US

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Re: x1 extreme finicky 2.4ghz wifi

2019-03-06, 2:29 AM

I see similar bahvior with my P1, which is very similar to the X1E.

 

Performance is normal on some 2.4GHz networks, but very slow on others. Performance always seems to be good on 5GHz networks. I have tried several different driver versions, tried changing settings and firmware in my home wifi router, but haven't found a solution. Signal strength is good on 2.4GHz, so it doesn't seem to be an antenna problem. I can have another device sitting right next to my laptop, connected to the same network, showing much faster throughput.

 

I was suspecting some kind of inherrent issue with the Intel 9560 card, but it's very interesting that your wife's computer doesn't have the problem.

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1 Posts

05-02-2020

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  • Message 6 of 8

Re:x1 extreme finicky 2.4ghz wifi

2020-05-02, 21:51 PM

I had the same issue on an X1 Extreme Gen2. The Wifi was fine on 5GHz but totally unusable on 2.4GHz. Turning off Bluetooth worked for me, so appears to be an interference issue in my case.

Updating the Bluetooth driver also appears to have reduced the interference. (Go to device manager, bluetooth, Intel Wireless Bluetooth, driver tab, then update driver.)

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10 Posts

04-22-2013

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  • Message 7 of 8

Re:x1 extreme finicky 2.4ghz wifi

2020-05-03, 6:26 AM

It's been so long since I had originally posted this. I did find another trick months later which completely solves the problem. On my router (ASUS rt-ac68u) there's a setting for channel bandwidth (under wireless/general tab) which is set at 20/40 MHz by default. If I change it to just 20 MHz there's no more problem. It hasn't caused any issues for other devices connected to the network. Been using this for 6 months or more.

0 person found this solution to be helpful.

This helped me too

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52 Posts

10-11-2018

US

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  • Message 8 of 8

Re:x1 extreme finicky 2.4ghz wifi

2020-05-04, 19:57 PM

Interesting. When I was having the problem I was also using an Asus router, model RT-AC66U. I did play with the 20/40 MHz settings and it didn't really help. I think I did see someone else say that they only had problems with 40 MHz. 

 

I have since upgraded my router to a Netgear R7800, and haven't had any problems with it.

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