The computer is not connected to the Internet, but the wifi still works

The reason why there is an Internet connection but the computer cannot connect to the Internet may be: connection problems caused by hardware reasons, connection problems caused by software reasons. As follows:

1. Connection problems caused by hardware reasons:

1. Network cable contact failure: It is obvious that you can see the unconnected sign in the lower right corner of the desktop, which can directly plug and unplug the connection crystal head between the router and the computer.

If that doesn't work, try a different network cable.

2. Occasional failure of the router or computer: Restart the router for a few minutes, or restart the computer to try.

3. Computer with wireless function:

1) Wireless: The wireless distance is too far and the signal is unstable, which can be solved by moving to a good signal range.

2) Wired: Due to the long distance, the network connection may be unstable, and the wired network cannot operate normally, at this time, you can left-click the network icon in the lower right corner, and manually turn off the wireless switch in the pop-up interface to recover.

2. Connection problems caused by software:

1. Network card driver error: If the network card driver is not installed properly, or the operation error is caused by the system instability, there will be network loss problems.

1) Driver installation error: Right-click My Computer - Properties - System Properties - Hardware - Device Manager.

Network adapter, whether there is a yellow exclamation sign in it, or there is the hardware identified at the top, if there is, it is likely that the driver is not installed, in this case, it can only be driven by a third-party device**, and then copied to the computer to install.

2) Driver running error: It is an accidental problem, which can be solved by restarting the computer, if you do not want to restart the computer, you can click the network icon at the bottom right of the desktop - network and Internet settings - network and Internet - advanced network settings - network adapter - Ethernet.

Click Disable and then enable it.

Install the Driver Wizard with the NIC driver.

Use the diagnostics inside.

Hello, there are many reasons why the computer can't connect to the network, so let's introduce them one by one. First, check if it is a problem with the network card: turn on the computer, right-click "Calculator", and find "Manage".

02 On the management page, find Device Management on the left side, Device Management ---Network Configurator ---find your own network card) - Update the driver software. After the update, restart your computer to see if you can connect to the Internet. 03 If the first one doesn't work, the second way is to check whether the connected network is allowed

First, find the Internet connection sign in the lower right corner of the computer. 04Right-click and find "Open Network and Sharing Center". 05After entering, on the left side, find "Change adapter settings" and click to enter.

06After entering, find the network you are connected to, click the right button, check whether it is disabled, if it is disabled, click to start. Try again to see if you can connect to the Internet. 07 If the second one is still not available, just refer to the following (the fourth is when connecting to the school network, you can find that you can also operate like this), still find "Open Network and Sharing Center" (you can refer to steps 3-4), find the local connection on the right, and click to enter.

08 Find "Details" again, click to enter, and check whether IPv4 has an IP address. 09If not, go back to "Local Connection Status" and click "Properties" in the lower right corner, and the properties --- Internet Protocol version.

When multiple devices have the same IP address on the same network, it causes network connectivity issues. You can try changing your computer's IP address to make sure it doesn't conflict with other devices. 2.

DNS Problems: DNS (Domain Name System) translates domain names into IP addresses so that your computer can access the Internet. If your DNS settings are incorrect or malfunctioning, your computer will not be able to connect to the internet.

You can try changing the DNS server settings to a public DNS server, such as Google's and Firewall Settings: Firewalls may prevent certain programs or ports from communicating with the internet, causing your computer to be unable to access the internet. You can check the firewall settings on your computer to make sure that the programs or ports you want are allowed through.

Xiaohuai 4Network driver issues: If your computer's network drivers are outdated or corrupted, it can cause issues with not being able to get online.

You can try updating or reinstalling the network drivers to resolve this issue. 5.Router Issues:

Sometimes, there may be a malfunction or configuration problem with the router that prevents the computer from connecting to the internet. You can try restarting your router and check if it's set up correctly. If none of the above works, you can try connecting your computer in a different network environment, such as public WiFi or mobile hotspots, to determine if the problem is related to your network.

If the problem persists, you may need to check your computer hardware further or consult a professional for help. I hope the above answers can help you, if you have any other questions, please feel free to ask me.

Summary. If your computer is able to connect to Wi-Fi but can't connect to the internet, there may be several reasons and solutions:1

Check IP address settings: Open network settings and make sure your power settings automatically get IP addresses. You can find the network settings option in the Control Panel (Windows) or System Preferences (Mac).

Shut down both your wireless router and computer, and then restart them. After waiting for a while, try to connect to Wi-Fi and surf the internet. 3.

Clear DNS cache: Open a command prompt (Windows system) or Terminal (Mac system), enter the following command and press enter to execute: -Windows system:

ipconfig flushdns - mac: sudo killall -hup mdnsresponder4Disable security software or firewalls

Some security software or firewalls may prevent your computer from accessing the Internet. Temporarily disable your security software or firewall and try to connect to Wi-Fi again to surf the web. 5.

Update drivers: If your wireless card drivers are outdated or incompatible, you may not be able to connect to the internet. Find the manufacturer of your PC or the manufacturer of your wireless card, and install the latest drivers.

Open the network settings and make sure your power settings automatically get the IP address. You can find the network settings option in the Control Panel (Windows) or System Preferences (Mac). If you set it up to get the IP address manually, make sure you enter the correct IP address, subnet mask, and default gateway.

2.Restart your network device: Turn off both your wireless router and your computer, then restart them.

After waiting for a while, try to connect to Wi-Fi and surf the internet. 3.Clear DNS cache:

Open the Command Prompt (Windows) or Terminal (Mac), enter the following command and press Enter: -Windows: ipconfig flushdns - Mac:

sudo killall -hup mdnsresponder4.Disable security software or firewalls: Some security software or firewalls may prevent your computer from accessing the Internet.

Temporarily disable your security software or firewall and try to connect to Wi-Fi again to surf the web. 5.Update Drivers:

If your Wi-Fi card drive program is outdated or incompatible, it may result in you may not be able to connect to the Internet. Find the manufacturer of your PC or the manufacturer of your wireless card, and install the latest drivers.

If all of the above methods do not resolve the issue, it is recommended that you contact your network administrator or contact your Internet Service Provider for further help and support. They can provide professional guidance on your network setup and setup.

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

2) If yes.

Router. The problem, if it was originally usable, it can't be used for the time being, my own practice is to disconnect the power of the router on the plug in, and I'll see. In there is restoration.

Factory settings. You can use it from the new strict according to the instructions to set it, you don't understand, it is not recommended to set it at will (this is in.)

Physical connections. On the premise of correctness, sometimes it is caused by the router's slow or failed IP address finding, not that the router is broken).

If it can't be solved all the time, it is recommended to call the customer service of the router, they have **** guidance, I encounter a problem that I can't solve by myself, it is very useful to consult the advice they gave, and they will give the correct advice for your settings or operations.

3) If it's closed.

Wireless switch. Turn it on.,If it's a wireless connection with software.,It's normal for the software to be bad and often have problems.,There's no better way.,Use a router.。 The other is.

NIC driver. There is no or inappropriate cause, the network cable interface or network cable is not a problem, etc.

4) If it is caused by a system problem, it is recommended.

Restore the system. or reloaded.

win7810 restore the system, right-click.

Select Properties for Computer, select System Protection on the right, and select System Restore.

Just follow the steps, if there is restore software, the image backup that comes with it, and the backup is made, you can also use the software and image backup to restore the system.

I practice mobile phones or other computers, TV, QQ, etc. can access the Internet, not necessarily your computer can access the Internet, the method look at the above, if you have any questions, ask me.

5) If you have any questions, please ask me.