Solved Lenovo flex 2-15- can't connect to any wifi network

hi
i have a lenovo flex 2-15 and installed on win8.1 x64.
download wifi driver from lenovo website (realtek rtl8723be wireless lan 802.11n pci-e nic)
But not identify any network.
i try it with win 7 x64 and other version of driver (2013,2014,2015) and even use from Driver Pack Solution software (v15.5).
also Uncheck" Allow the computer to turn off this device to save power" on "power management".
please help me !!!!!!!!

As long as it is the correct driver, WiFi is turned on, then you should be seeing SSID's available.

WiFi is turned on and I think the drivers are installed correctly Because downloaded it from Lenovo Site
My other Devices connected and my PC Find 4 Network That It is near , But my laptop no find any network
(Shown in picture)

Is the WLAN Autoconfig service running?

I think it's Running
(shown in picture)

Make sure the Wireless is turned on. There will be a switch or a Fn + F key combo that controls this.

In the screen shot it shows Wireless with a red X through it so it's definitely not active.

I sure that's on. In the before picture(at the top of page) shown the Wireless is turned on and AirPlane Mode is off.

Where I work, we mostly use Lenovo computers. Drivers are always a pain. It seems that that ones that they offer when you enter the model info is never the correct driver. Try to uninstall the driver and search the computer for drivers. There is usually a drivers folder there by default.
Or if you have a hotspot or can tether your phone, use that as an internet source and do a check in windows update

thank you mike6623
i again change my driver it's worked and connected to internet , but when I change my distance it's disconnected and not find any network.
it's only find my network when i near less than 5 meter.

hi!! finally i found my problem

hiseller was opened laptop and when they want to again assemble ، the WiFi antenna was removed...Warranty fix it.

Hello. To any one facing issues in WiFi signal strength, frequent drop in signal in Flex 2 14/15, please note it's completely a hardware issue with this model. The fix is simple though. It appears that the cable which connects antenna with the adaptor is not designed to hold on to the connections.

There are two ports. Main and AUX in the network adaptor. If you open laptop, you will see one of them have will have loose contact/no contact with the antenna wire. My authorized technician had to reassemble my laptop numerous times because of failing contact and finally tapped the wires to the port inspite of installing a new NW adaptor.

So head to the service center folks. This is a design issue and affects few.No driver can sort this out.

Good information, sure to help someone.