1. If it is a local area network, check whether the IP settings of the local connection of your network card are correct. In fact, if the IP address is automatically obtained, there will be no problem with the gateway. If you manually add the IP address yourself, you should check whether the correct gateway is set. This gateway is generally the management IP of your router, such as 192. 168.0.66.
2. Look at Wan Gang again. If the IP of WAN port is automatically assigned by ISP, it depends on whether the IP address is in the same network segment as the gateway. If not, it is impossible to surf the Internet. If you use a fixed IP to surf the Internet, check whether your IP address, subnet mask, gateway and DNS are correct. Gateway error
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