Mahdi51

This is the exact same problem i faced yesterday. You can try disconnecting and reconnecting the internet connection then reboot your pc. If problem still exists then go to this page:

Restarting the computer fixed the issue.

My Eset Internet Security network protection is turned off automatically. I can't turn on firewall, Network attack protection, Botnet protection from my eset internet security. I have updated the antivirus but that does not fix the issue.