My laptop WIFI slow when it was not charged

Feb 14, 2018
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My laptop wifi is slow when my laptop not charging. I have tested ping to "google.com" and I got reply 150 ~ 1000+ ms.

But when I charging the laptop, the ping is stable I got 10-50+ms.

What is the problem

(Lenovo ideapad 310) Win 10
 
Feb 14, 2018
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10


I checked, and I see this "Allow computer to turn off this device to save power", still doesn't work.

There is two checklist :
1. [v] Allow the computer to turn off this device to save power"
2. [ ] Allow this device to wake the computer.

I tried it all. But there's no change. Or I need to restart after making a changes

 
Mar 19, 2018
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I too have this issue but on the ideapas 720s. Did you find a solution?