1. Double-click the network icon in task manager in the lower right corner of the computer, and thenOpen Network and Sharing CenterAfter entering, click "Change adapter settings" to see if the local connection cannot access the Internet.
If the local connection (Ethernet) is disabled, right-click to enable it.
2,Open Device ManagerCheck whether the anti-virus software has killed the NIC driver. If a yellow question mark is displayed, the problem may be.
If the NIC driver is abnormal,Download the latest NIC driver and reinstall it.You can.
3. Check the service and check whether the DHCP Client service is disabled by anti-virus software. If the service is stopped, the computer will not be able to receive dynamic IP addresses and DNS updates.
If the service is disabled, right-click and choose enable.
4. If there is no problem, we can use the computer manager to repair the system. For example, we use the 360 computer manager.
After you use it to fix the problem, you can generally access the internet. Of course, the 360 Butler antivirus solution causes computer problems and can be restored.