Laptop no internet connection

What to do if the laptop cannot find the wireless network connection

1. Method 3: The wireless network card may be broken. After trying the above methods, but still unable to solve the problem, you might as well try Try reinstalling the system. If it still doesn't work, it is recommended to get it repaired in time. Summary: This problem is encountered because the computer’s wireless network is disabled. Open the settings interface and click Network and Internet.

2. The laptop cannot search for a wireless network. First, go to "Start" → "Control Panel" → "Network Connections", right-click "Wireless Network Connections" and select "View Available Wireless Connections". Note, if there is no "Wireless Network Connection" in your "Network Connection", please contact the computer manufacturer's after-sales department.

3. The laptop cannot search for a wireless network. First, go to "Start" → "Control Panel" → "Network Connections", right-click "Wireless Network Connections" and select "View Available Wireless Connections". Note, if there is no "Wireless Network Connection" in your "Network Connection", please contact the computer manufacturer's after-sales department.

4. The laptop does not have the option to connect to wifi. You can check the wireless network card driver, check the network connection settings, etc. Check the wireless network card driver: Wireless network card driver problems are the most common reason why the WiFi option disappears. You can check whether the wireless network card driver is normal through the device manager.

The laptop cannot connect to the network

First consider the wireless network hardware switch in the laptop. Some laptop models have this switch. If it is turned off, it cannot be used no matter how it is set. Wireless network function, so first make sure this switch is turned on.

Open the Network Sharing Center - check the currently connected network, click the connected network; enter the properties interface, click the sharing option in the menu bar, check to allow other computers to connect to the network, Select a wireless network from the drop-down menu below and click OK.

The reason why the laptop cannot connect to the wireless network - the operating system version is too low. If the operating system you are using is very old, although on the surface this system will not affect the wireless network card, in actual application you will I found that even if I choose an 11n wireless network card, some wireless networks using WPA or WPA2 encryption still cannot be connected.

What to do if your laptop’s wireless network connection is unavailable

It is recommended to confirm whether the MAC address filtering function (black and white list) is turned on on the router, and then try restarting the router after resetting it. The setting path for router Mac address filtering is generally: Router Management Interface-Wireless Settings-MAC Address Filtering.

Abnormal network connection may be caused by a network connection error. We can disconnect the connected wireless network first, use the password and then reconnect. A wifi wireless router actually converts wired network signals into wireless signals through a wifi wireless router, which can be received by computers, mobile phones, PDAs, etc. that support its technology.

Make sure the FN shortcut key is turned on, make sure the FN shortcut key driver, power management software and wireless network card driver are installed normally. Confirm whether the hardware switch is turned on. Make sure wireless networking is enabled in changing adapter settings. Enable network connection related services.

Why is the laptop unable to connect to the network?

1. There are three possible reasons why the laptop cannot connect to the network. The wireless network card of the laptop is too old. Some old laptop users have problems because the network card of the laptop is too old. Maybe this network card only supports the IEEE 8011b standard and WEP encryption protocol, but does not support the current mainstream WPA and WPA2 encryption protocols.

2. Possible reasons are: The wireless network signal is unstable or weak, resulting in the inability to connect to the Internet. The wireless network settings are incorrect, such as incorrect IP address, gateway, DNS, etc. The computer firewall or antivirus software is blocking the network connection.

3. The most suspicious thing when the router fails is the power supply system, so the first thing to check is the power supply system to see if there is current and voltage in the power socket. If the power supply is normal, check whether the power cord is damaged or loose. If the power cord is damaged, replace it and plug it back in. Wireless router settings.

4. Router problem. Please first check whether the computer with a wired connection can be used normally, because sometimes even if there is a WIFI signal, it does not mean that the broadband is normal.

5. The reasons and solutions for why the laptop cannot connect to the Internet when the Internet cable is plugged in are as follows: If the network icon is with an exclamation mark, it is the reason why the LAN is unstable. It is recommended to try setting a fixed IP address; if the network icon is A red cross is also a problem with the network card. It is recommended to try reinstalling the network card driver.

What to do if your laptop has no wireless network connection

It may also be due to a problem with the wireless network card driver. It is recommended to reinstall the network card driver. Make sure that the wireless network card driver is correct before you can use the wireless network function. Technical Principles Wireless LAN Terminology Analysis. Networks can be divided into local area networks, metropolitan area networks and wide area networks according to regional classification.

Solution to the problem that the laptop cannot connect to the wireless network: Check whether the wireless network card is disabled.

網路連線異常有可能是網路連線錯誤導致的問題，我們可以先斷開連線的無線網絡，用密碼再重新連線。 wifi無線路由器，其實就是透過wifi無線路由器把有線網路訊號轉換成無線訊號，供支援其技術的電腦、手機、PDA等接收。

如果是重裝的系統，設定都是對的，連不上無線。那就是網路卡驅動不完善，重裝安裝正版系統。突然連不上網，設定是對的。就拔插一下網路線，或是重新啟動路由器。網路適配器裡面無線網路卡驅動是否正常。

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