Ubuntu wired can not access the Internet (windows can be double system) - can connect can not access the Internet

If Windows can be a problem with hardware and networking. So we have to configure the configuration of ubuntu

Try it first:

sudo network-manager restart

If not, try it:

sudo Ifconfig etho

If there is no error indicating that the NIC driver is okay, try rebooting:

ifconfig eth0 down

ifconfig eth0 up

If it still doesn't work, change it. Ip and DNS:

First get the ip and DNS under windows, my is

Everyone can refer to it, don't blindly imitate. Look at whether iP conflicts with other computers, DNS is correct, I have tried DNS wrong, because ubuntu default DNS is 192.168.1.1. Although many computers are this, there is no guarantee that each route has not been set. So look at it and set it again