try these
1. Reinstall your network adapter drivers by going control panel/device manager/network adapters uninstall the drivers BUT make sure "Delete the driver software for this device" is unchecked after you click uninstall then click "Action" and click "Scan for
hardware changes" it will scan some missing drivers and it will reinstall the network adapter drivers after finishing restart your pc.
2. launch cmd "run as administrator" then type this command: (netsh int reset) OR (netsh int reset reset.log) then restart your computer.
3. go to control panel/network and sharing center/change adapter settings then right click on Local Area Connection select properties disable ipv6 then select ipv4 click properties make sure that "Obtain an IP address automatically" & "Obtain DNS server addresses" are selected.
"after you update the drivers make sure you right click on adapters after reinstalling them and enable them"
Hope this helps
Good luck.