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Jaden_101
Blue Screen Again
Posts: 7
Registered: ‎11-28-2019
Location: GB
Views: 950
Message 1 of 18

lenovo yoga c740 kills wifi

hi, I just bought the new Lenovo yoga c740 i7 and since then whenever I connect to my home wifi which is talktalk, the wifi basically crashes and everyone in our house devices is disconnected. I saw online that this problem is quite common but I haven't seen one with this laptop so does anyone have any suggestion? I would very appreciate it

Many thanks 

Jaden

Support Specialist
Posts: 881
Registered: ‎08-02-2018
Location: US
Views: 869
Message 2 of 18

Re: lenovo yoga c740 kills wifi

Hi @Jaden_101,

 

Greetings!

 

That's quite interesting. Have you tried contacting your ISP to change the WIFI channel or the WIFI password and refresh the connection? 

 

Check for Windows and Driver update using the Lenovo Vantage and make sure that the laptop is up to date. 

 

You may learn more and download the Lenovo Vantage here: https://support.lenovo.com/us/en/solutions/ht505081

 

Update us how it goes.

Auxen



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Jaden_101
Blue Screen Again
Posts: 7
Registered: ‎11-28-2019
Location: GB
Views: 858
Message 3 of 18

Re: lenovo yoga c740 kills wifi

Hi Auxen,
Thanks for getting back to me, the drivers and windows are all up to date, I have tried to reset the router and password and that didn't help, so my ISP is going to send a new router in 1-2 days.
Hopefully it will work, I'll keep you updated when it arrives, thanks for the suggestions!!
Jaden
Support Specialist
Posts: 881
Registered: ‎08-02-2018
Location: US
Views: 849
Message 4 of 18

Re: lenovo yoga c740 kills wifi

Hope everything went well after the router replacement. You might also want to connect to a different WIFI network to isolate the problem while waiting for the replacement router.

 

Keep us poted. 

Auxen

 

 



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.

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Jaden_101
Blue Screen Again
Posts: 7
Registered: ‎11-28-2019
Location: GB
Views: 426
Message 5 of 18

Re: lenovo yoga c740 kills wifi

Hi so after the new router replacement, it still did not solve the issue, so I upgraded to 40mbps download and this improves it a little bit. I also tried setting it to a metered connection and disable background apps. With these, the situation got better but the issue is still not solved. Before it was whenever I connected, the wifi basically disconnects every device and nobody can use it for a while, now its less frequent but still happens. I connected to my university wifi and that still works. I had a Lenovo laptop before and this never happened! 

Jaden_101
Blue Screen Again
Posts: 7
Registered: ‎11-28-2019
Location: GB
Views: 425
Message 6 of 18

Re: lenovo yoga c740 kills wifi

Also, in Reddit, someone else who had this c740 had the same issue but he's from Australia  

BZNL
Paper Tape
Posts: 5
Registered: ‎01-24-2020
Location: NL
Views: 360
Message 7 of 18

Re: lenovo yoga c740 kills wifi

Seeing the exact same issue here. Wifi is normally very stable. As soon as I connect my new yoga C740 the wifi keeps disconnecting on all devices on the same wifi network every few minutes.

Maureen78
What's DOS?
Posts: 4
Registered: ‎01-26-2020
Location: US
Views: 322
Message 8 of 18

Re: lenovo yoga c740 kills wifi

I just received my new Yoga C740 (14") on Friday (Jan 24) and we started seeing random brief wifi shutdowns in the house.  We tried resetting the router (a Linksys model WRT1900AC) on Saturday, but that did nothing.  I didn't make the connection between the frequent wifi issues and this new laptop until I came here to search for compatible pens. Hopefully someone comes up with a genuine fix for the problem.

BZNL
Paper Tape
Posts: 5
Registered: ‎01-24-2020
Location: NL
Views: 315
Message 9 of 18

Re: lenovo yoga c740 kills wifi

I may have found a solution for this issue. After uninstalling the seemingly useless preinstalled app 'Lenovo Utility' I have not seen any WiFi issues anymore. Perhaps someone else can confirm if this works for them too?

BZNL
Paper Tape
Posts: 5
Registered: ‎01-24-2020
Location: NL
Views: 262
Message 10 of 18

Re: lenovo yoga c740 kills wifi

5 days have passed since I uninstalled Lenovo Utility and still everything seems to be fine. Anyone else who has had the opportunity to try this out? I am very curious to know if this really is related to this tool as this may help in giving the Lenovo team something to look at.

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