What should I do if the wireless network card cannot access the Internet and the connection fails to

1. If you are using a wireless network card that cannot access the Internet, the handling method is as follows:

Check whether there is China Unicom 3G or 4G network coverage in your area;

Check that the Wi-Fi card is plugged in. If not, plug it back in;

Check if there is a problem with the driver. You can remove the wireless card driver and reinstall the driver;

Prepaid users can check if there is an account balance. If it is not enough to pay for timely recharge;

Check whether the traffic usage in the current month exceeds the maximum traffic limit. If it is unavailable this month, the Internet access function will be automatically restored in the next month.

2. If this is not the case, it is recommended that you contact the local Unicom customer service for verification, and the actual situation is subject to the local policy.

Step 1: Check whether there is any arrears on the mobile phone, and if there is any arrears, it is recommended to pay the call bill as soon as possible; Step 2: Check whether the data UIM card is installed correctly. Step 3:

Disconnect the network card from the computer and restart the computer; Step 4: Check that there is a software conflict between the computer operating system and the e-Surfing broadband SIM card dial-up software, such as firewall, anti-virus software, VPN, etc., and restart the computer after shutting it down and try again; Or plug the card into another computer for testing. To learn more about service offers, click on the "****" customer service 217 below to answer for you.

The wireless wifi network has been seen everywhere, which greatly facilitates everyone's mobile device to access the Internet and saves the trouble of network cables. But what to do in the event of a network failure? Below I will summarize the seven reasons for wireless network card connection failure and the corresponding solutions, I hope it will help you!

Cause 1 of the wireless NIC connection failure: The connection point or password is incorrect

The connection point or password is set in your own router, and there will be an error prompt if the password is wrong, but there may be no error prompt due to a program error, and at this time, you must first make sure that your wireless SSID and password must not be wrong.

Solution: Unplug the wireless network card, uninstall the driver, use the tool to clean up all the program junk and registry junk, restart the computer, plug in the wireless network card again and reinstall the driver. If it still doesn't work, you can consider installing the network card on another computer to ensure the availability of the network card and drivers.

Reason 2 for wireless NIC connection failure: insufficient radiationWireless NIC connection failure cause 3: The software is incompatible

If your computer isn't connected to a wireless network in the first place, it's likely that you have incompatible software running on your computer. This includes software that contains operating system patches, operating system service components, or other software that affects the system network.

Solution: Make a record every time you upgrade or install software, and uninstall incompatible software, or simply restore the system.

Cause 4 of the wireless NIC connection failure: The wireless NIC connection is connected to the wrong network

If there are 2 Wi-Fi networks with the same network name in the wireless network environment you are using, then you are likely to link to the wrong network and affect your normal Internet access. In this case, the signals often interfere with each other or the radiation range is insufficient. In addition, if another network is down, it will also affect your computer's Internet access.

Wireless NIC connection failure cause 5: The router (access point) is overloadedSolution: The place where the router is installed should have a good ventilation environment.

If the router is not suitable for your use (such as requiring a high data transmission capacity), consider replacing the router.

Wireless NIC connection failure cause 6: The network driver or firmware is not upgraded in time

Every computer connected to a Wi-Fi network must use its built-in network module and related drivers to achieve wireless Internet access. Drivers affect the functioning of various functions of Wi-Fi hardware. In addition, the wireless router and the firmware responsible for accessing the wireless Internet are also affected by the same as the driver.

Reason 7 for wireless NIC connection failure: radio interference

Radios can come from a wide range of consumer electronics, such as cordless**, Bluetooth headsets, microwave ovens, and even garage doors, all of which can interfere with the proper functioning of Wi-Fi wireless signals.

Solution: Move away from these devices, if the wireless signal is restored or stronger, it means that the root cause of the problem has been found.