Open Start > Settings > Update & security > Troubleshoot
Scroll down
Click Network adapters
Click Run the Troubleshooter
When complete, restart to see if the problem is resolved.
If that does not work
Press Windows key + X
Click Device Manager
Expand Network Adapters
Select the Network card listed,
Select “Update Driver”
This should give you a choice of drivers - select the oldest one
Wait a few minutes while it installs the old driver
or
press Windows key + X
Click Device Manager
Expand Network adapters
Right click your adapter
Click Uninstall
Exit Device Manager, restart. Windows 10 should detect the network adapter then reinstall it. Check if you can connect and browse.
also try:
Open Start > Settings > Network & Internet > Status
Scroll to the bottom then click Network reset.
Click Start > Settings > Network & Internet > Wi-Fi > Manage known networks > select the Cloud wireless network
Click Forget
Restart
Click the Network icon in the Taskbar
Try connecting again.
Disable Energy Efficient Ethernet in "Client for Microsoft Networks"
Press Windows key + X
Click Device Manager, expand Network Adapters, right-click the adapter > Properties > Power Management, and then clear the Allow the computer to turn off this device to save power check box.
If you don't have that option, see other ways to disable it: