Click Start
Type: cmd
Right click CMD
Click Run as administrator
At the command prompt, type each command then hit Enter:
ipconfig /flushdns
ipconfig /registerdns
ipconfig /release
ipconfig /renew
NETSH winsock reset catalog
NETSH int ipv4 reset reset.log
NETSH int ipv6 reset reset.log
Hit Enter
Exit the prompt then restart
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.