Confirm where the exclamation point appears:

1. An exclamation mark appears in the network connection at the bottom right foot. You need to check whether the router is connected to the operator's network. Change the network settings to automatic acquisition (DHCP). At the same time, you need to check the whitelist settings of the router.

2. If it appears under "Ethernet Controller", the driver has not been installed yet. Just install the corresponding network card driver;

3. Appear under "Network Adapter", disable the network port with the exclamation mark, and then enable it;

4. If it is a fiber-optic network card, pull out the fiber-optic module first, then disable-enable it, and then insert the fiber-optic module. If an exclamation mark appears after plugging in the fiber-optic module, it means there is a compatibility issue between the fiber-optic module and the network card, and a compatible fiber needs to be replaced. module.

5. You can contact FAE for support.