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On the optical modem, only network port 1 can access the Internet and other ports cannot access the Internet? It's not that the mouth is broken, it's that the VLAN has tied the mouth shut, and the three paths are untied.
The four ports on the back of the optical modem are exactly the same. If you plug in network port 1, you can access the Internet. If you switch to network port 2, there will be no network. Computers and mobile phones are the same. It's not that my mouth is burning, it's that the operator has used VLAN to tie the Internet channel to network port 1. This article explains the principles clearly, and then gives you three ways to change the binding, add a switch, and change the interface. You can directly check which one is suitable for you. ...
