WiFi get disconnected when closing the lid

i have a Lenovo IdeaPad S510p Laptop
Model Name : 20298
MO: WB0401240H

my problem :
every time i close the lid, the WiFi speed and signal strength get lower and then disconnected.
I tried many solutions but nothing helped me solving this problem
what i have done since yet
1- formatting windows
2-installed another version of windows 7/8
3- resetting the windows which deleted all partitions
4- installing 3 or 4 different drivers
5- uninstalled the current driver and let windows detect drivers
6- factory reset of bios

the laptop get only disconnected when i close the lid. but if i keep the lid open it never get disconnected or lose signal strength.
also if i keep the lid open and turn off the display i don't get disconnected

hope someone can help me

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Re: closing the lid

- What are the settings for the effect of closing the lid in the energy settings in Control Panel?
- If you open the lid again, is the connection restored?


- Collapse -

The WiFi antenna is in the lid so closing the lid changes the antenna performance so much that you see what happens.

It's not a bug, it's not a software setting.

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