The reason why the network cable is not connected to the network:
1. Open the device manager and check whether the network card is normal.
2. If the network cable is given directly to you by the operator, please check the PPPOE dial-up settings.
(This process requires the Internet user and password provided by the operator)
3. If a router is used, please check the router configuration.
① Check the running status of the router.
②If no ip is assigned, please check the wan port parameters
ISP Internet service provider, that is, to the general A telecommunications operator that comprehensively provides users with Internet access services, information services, and value-added services.
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3. Network signal:
1. Check the network signal access terminal such as modem or wireless router, etc. device and check whether its signal indicator light is normal. If there is any abnormality, you can contact the network service provider by phone for technical support.
If the network signal is normal, the Internet status indicator light in the picture below should be always on, and the Internet indicator light and LAN indicator light should be always on and flashing (the indicator light signals of different brands and models of modems are similar).
2. Eliminate various factors that affect wireless signal propagation:
(1) Wireless LAN uses microwave transmission, and the biggest feature of microwave is that it bypasses Shooting ability is very weak. The most important obstacle in a home network is the wall. It not only blocks wireless signals but also absorbs electromagnetic energy. Therefore, the wireless receiving device behind the wall can only receive a very weak signal or no signal.
(2) Strong magnetic fields from microwave ovens, Bluetooth devices, cordless phones, refrigerators, etc. will affect wireless network signals.
(3) If there are multiple wireless devices in the wireless environment, there may be channel conflicts and wireless signal crosstalk problems.
(4) Strong signal interference sources such as radio transmission towers, welding machines, trams or high-voltage power transformers within 100 meters of wireless equipment and cable lines may also cause strong interference to wireless signals or equipment.
(5) Weather conditions also have a great impact on wireless signals during outdoor propagation. Signal attenuation is greater in thunderstorms or gloomy weather, and signals can be transmitted farther on sunny days.
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