I can t use my internet card? How to solve the problem that the network card cannot be connected

It can't be used in the first place, and the network card uses an external cat, which is equivalent to dial-up Internet access; Broadband uses a network card, although it is a ** line and not a device.

modem: The name modem is to convert the received analog signal into a digital signal (demodulation) that can be recognized by the computer; Convert the digital signal output from the computer into an analog signal and transmit it (modulated)!

NIC: The name of the network adapter. The name of the corresponding physical device is to configure the corresponding physical device for different network interfaces!

You can see it when you look at their jacks.

The modem is plugged in ** (generally with the phone logo)...

The network card is plugged into the RJ45 head of the network cable (generally with RJ45 and LINK logos).

At present, the network card is generally used for broadband connection and machine connection in the LAN, and modem can only be used for dial-up Internet access, which has basically been eliminated.

It means that your signal is not particularly good in the local area, so it will display two G. You go a little farther, or in the big cities, um, it will show 4G.

1.First, we right-click on the network connection icon in the lower right corner of the computer and select "Open Network and Sharing Center" and click on the "Add new connection" option in the pop-up page2A new window will pop up to set up the connection or network, then select "Connect to the Internet" in the new pop-up window and click "Next"3

In a new pop-up window, click and select "Still want to make a new connection", then select "No, create a new connection" and click "Next".

4.Then, in the Manually Create Network Profile (M) window, enter the network name, security type, encryption type, and security password, and connect to the network after the settings are complete.

Check that the signal is covered and that it is stable.

You can try a different phone or card.

1.If it is a problem with the broadband itself, first directly connect the broadband network cable to test, and if it is a broadband problem, contact broadband customer service to solve it.

2.If it's a problem with the router, you can reinstall a new one.

3.If the wireless switch is turned off, just turn it on, if the wireless software connected with the software is not easy to use and often has problems, then let the professional repair it.

1. Open the control panel and find the Network and Sharing Center.

2. Find the connected wireless network card, right-click the wireless network card properties, find the IPv4 protocol, and click OK.

3. Then change the settings to automatically get IP address and automatically get DNS server address.

4. Check the router settings, if DHCP and other services are not enabled, the wireless network may not be used normally.

5. First open the browser of the computer connected to the current wireless router, enter part of the router in the address bar, check the bottom label of the router to know), log in to the web configuration interface of the current router, and the default username and password are admin.

6. Click the DHCP server, and turn on the DHCP function, so as to ensure that the router can assign an IP address to the device when it is connected to the LAN port or connected to WiFi.

7. Check whether the wireless router filters out the MAC address, if so, you need to add a new MAC address in the router settings. Otherwise, only devices with a specific MAC or IP address will be able to connect.

The problem description is a bit confusing. The best and easiest way to solve the problem of network card connection is normal and cannot access the Internet, which is to adopt an alternative method, that is, use someone else's computer to try it out. Of course, you'll want to gather some information to help you decide how to solve the problem.

1. If the NIC and its driver are connected normally, check whether the IP address obtained or set is correct; 2. If the IP address is correct, see if you can ping the gateway, if the ping fails, it means that you have a problem connecting to the gateway locally; 3. If you can ping the gateway, and then see if the DNS is correct, you can simply judge by pinging, if the ping can't get through the DNS (usually DNS failure), you can try to use other DNS. 4. If the above information is correct, then distinguish whether all the web pages cannot be opened or some of them cannot be opened, in general, some web pages cannot be opened, it is a problem with the source server or a parsing error, and it has nothing to do with your computer. If all of them cannot be opened, it should be an error in resolving the domain name.

Hope it helps.

I don't know what kind of network card you are, and, whether you can get on QQ or something. If you can get on QQ, you can't open the secondary web page, that is, some of the registration files are missing, and you can reinstall it.

To view the local connection properties, right-click "Local Connection" - Properties, in"This connection uses the following items"Look for whether there is any redundant network driver and network protocol, mine is because there is more of this "liebao wifi nat driver" driver, which leads to the error. Click "Uninstall", and that's it.

Then try again to see if you can connect to the network.

Is it a 3G network card?

Was that the way it was when you first used it, or was it just the most recent?

Summary. Hello, happy with your question. Here's what you can try:

1.Place the router antennas horizontally and vertically, and if there are three, adjust them to a horizontal and vertical orientation.

2.Do not place the router near metal objects and appliances.

3.Do not place the router on the ground, on a high place or on a table.

Hope it helps

What is the reason why the Internet card cannot access the Internet.

Hello, happy with your question. Here's what you can try:

1.Place the router antennas horizontally and vertically, and if there are three, adjust them to a horizontal and vertical orientation.

2.Do not place the router near metal objects and appliances.

3.Do not place the router on the ground, on a high place or on a table.

Hope it helps

What to do if the wireless card cannot be used:

1.Check whether there is China Unicom WCDMA3G network coverage in your area.

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

3.Check if there is a problem with the driver. You can remove the Wi-Fi card driver and reinstall the driver.

4.Prepaid users can check if there is an account balance. If it is not enough to pay, it will be recharged in time.

5.Check whether the traffic usage in the current month exceeds the maximum traffic limit. If you can't try it this month, the Internet access function will be automatically restored the next month.

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How to deal with the unusable 3G wireless network card of China Unicom:

1.Please check whether there is China Unicom WCDMA3G network coverage in your area.

2.Please make sure that the Wi-Fi card is properly inserted. If not, plug it back in.

3.If there is a problem with the driver, please delete the Wi-Fi card driver and reinstall the driver.

4.Check whether the balance of the Wi-Fi card is sufficient to offset the monthly fee;

5.Check that the Internet access function will be automatically disabled when the traffic usage exceeds 15G in the current month;

The solution to the problem that the computer cannot connect to the Internet.