My laptop s local connection and network connection are both cross 20

The network adapter has been uninstalled, either with Driver Life or Driver Genie to update the driver and not adapt to its own hardware version.

What hardware should have been modified, don't use any 360 security guard to uninstall some unknown system files after installation

Anyone who causes computer problems is idle

Here's how to restore to the system's default network adapter, [FYI] right-click My Computer - Management - Device Manager - Click on your computer name - (Scan to detect hardware changes).

Locate the Network Adapter tab option - Select the hardware driver that has been changed - Right-click - Properties - if it shows: The device has been deactivated. (** 22) Click "Enable Device" to enable this device.

Then click on the following enable device to start this device, [wired and wireless method is the same] you try the above method, or it doesn't work, the system startup service item has been changed, resulting in the computer can not access the LAN to share the Internet.

No, I'm going to explain it to you

Exhausted, all hands beaten.

The first step is to open Device Manager and look for a yellow exclamation mark or a red cross.

If there is, alas, a lot to write, in short, you get rid of the yellow or red in the device manager. --Your case is to look at the network card. It's possible that you have a problem driving.

The second step is to check the local connection. Is it your own home network, or someone else's? If DHCP is not enabled, you will not be able to get it automatically. Keep the computer on the same network segment as the router. Since you know how to set it, don't be verbose.

The third step is to check the network cable, network head, etc., hardware facilities.

Fourth, if it doesn't work, reset the router.

Fifth, if it doesn't work, first change it to 10m half-duplex, try, if you can, then change it to an automatic detection test.

Internet - Cat (modem) - Router - Wireless router In this process, the corresponding devices need to be configured. Cat - router, you need to connect the cat's outgoing line to the WAN port of the router, and then enter this routing configuration page (the default DHCP is turned on, enter directly in the IE address bar, the password Aadmin admin), find the WAN port configuration in the network settings, generally there are 3 modes PPOE dynamic IP static IP, select PPOE mode, enter the corresponding information given to you by Telecom, and save and exit. Router - The wireless router connects the outgoing line of the LAN port of the router to the WAN port of the wireless router, and first connects an independent network cable from the LAN port of the wireless router to the computer to configure the wireless router.

Enter the wireless routing configuration page in the same way as above, change the default IP of the wireless route as it should be: to avoid the gateway you said is a segment that cannot access the Internet, select dynamic IP or static IP in the 3 ways in the WAN port settings, select the dynamic IP to save directly, configure the wireless Internet mode, wireless Internet security or something, adjust the exit well. In order to prevent the occurrence of the situation that you cannot access the Internet when you can log in to QQ, it is best to fill in the local DNS address in the DHCP server.

Hope it helps.

The Wi-Fi setting for the wireless route is incorrect. Go in and reset it, then restart the route, and you're good to go.

Summary. Hello, there is a red cross on the network connection of the desktop computer is caused by the failure of the network connection, the specific solution is as follows: Method 1:

1.After turning on the computer, you will find that there is a red cross in the network connection, click the "Network Connection" icon - "Open Network and Sharing Center". 2.

Click on "Change adapter settings". 3.Find the local connection, right-click to open the menu, and click "Diagnostics".

4.The system will detect the cause of the network disconnection and make corresponding repairs based on the cause. 5.

When the red cross disappears, the network shows that the connection is successful and you can go online.

Hello, there is a red cross on the desktop computer network connection is caused by the network connection failure, the specific solution is as follows: Method 1: 1

After turning on the computer, you will find that there is a red cross in the network connection, click the "Network Connection" icon - "Open Network and Sharing Center". 2.Click on "Change adapter settings".

3.Find the local connection, right-click to open the menu, and click "Diagnostics". 4.

The system will detect the cause of the network disconnection and make corresponding repairs based on the cause. 5.When the red cross disappears, the network shows that the connection is successful and you can go online.

Method 2: 1. First confirm that you can turn on the wireless switch by pressing the FN+F2 combination key. 2. Confirm whether the wireless service is turned on, method:

Please click "Run" in the start menu, enter and find the network connection settings. 3.Click Start Menu - Control Panel - Tethering Center --- Manage Wireless Networks, delete the previously saved wireless networks, and then turn the wireless switch off and on again.

4.Right-click on the wireless network icon you want to use, select "Properties", and in the "Connections" tab, tick "Automatically connect when this network is in range". Method 3:

1. Check whether the network cable is connected well, plug and unplug it again, and see if the connector is in poor contact and loose. 2. Check whether the network cable is in good condition, and try to replace it with a new network cable. 3. Check whether the device (modem, switch, router, etc.) connected at the other end of the network cable is turned on, and whether the port of the device is not in good contact or damaged, etc.

4. Finally, check whether the network card on the computer is damaged, and replace the network card. Expansion: Broadband connection in basic electronic and electronic communication is to describe the continuation or electronic line contains or can handle a wide range of frequencies at the same time, it is a relative way of description, the larger the frequency range, that is, the higher the bandwidth, the transmission of data is relatively increased.

The upper limit of the dial-up Internet speed is 56kbps, and the lower than 56kbps is called "narrowband", and the above is called "broadband". I hope mine is helpful to you and I wish you a happy life