Shulou(Shulou.com)05/31 Report--

Hello everyone, Lin Fei to answer the above questions, laptop wireless Internet access slow how to return, laptop wireless Internet access many people do not know, now let's take a look!

1. With people's trust in network information technology, more and more people begin to rely on the Internet, and even order meals through the Internet. Once the laptop wireless network is not connected, it seems that something big has happened. Quickly find the reason why the laptop is not connected to the wireless network. What do we do? let Benshaw explain in detail why the laptop cannot be connected to the wireless network.

2. First, the reason why the laptop can not connect to the wireless network-the wireless network card of the laptop is too old for some old laptop users.

3. Because the notebook network card is too old, it may only support IEEE 802.11b standard and WEP encryption protocol, but not the current mainstream WPA and WPA2 encryption protocols. So if you use this wireless network card, although you can search the list of wireless networks for WPA or WPA2 encrypted wireless networks, you cannot connect to these wireless networks because your wireless network card does not support encryption protocols. At this time, the built-in wireless network card is often shielded by the encryption protocol and cannot connect to the network. Solution: if there is an urgent need to use a wireless network, you can temporarily reduce the use of encryption protocols such as WEP. But the most effective solution is to replace a brand new internal / external wireless card and choose one that supports the 802.11n standard, so that it can be done once and for all.

4. the reason why the laptop can not be connected to the wireless network

5, 2, laptop wireless network connection reasons-pay attention to laptop wireless network switches and shortcut keys.

6. In order to reduce power consumption and increase battery life, many new notebooks have designed wireless network switches, which are off by default. In addition, some wireless switches are designed to be hidden, making it difficult for users to find them. At this point, you need to turn on the wireless switch to connect to the wireless network properly. In addition to the wireless switch, many notebooks also design shortcut keys (usually Fn F5), which can be pressed to activate the wireless network card.

7. 3. The reason why the laptop can not connect to the wireless network-the operating system version is too low, if you are using the old operating system

8. On the surface, this system will not affect the wireless network card, but in practice, you will find that even if you choose the 11n wireless network card, some wireless networks encrypted by WPA or WPA2 are still not connected. The reason is that the problem is with your Windows XP version. According to Microsoft data, although Windows XP will support WPA and WPA2 protocols after the SP1 patch, there are still some problems in the compatibility of SP1 and WPA/WPA2 in practical applications. Solution: I'm sure you've thought of it, and that's to upgrade the operating system. Whether it is Windows 7, Vista or XP SP3, you can provide good WPA and WPA2 protocol support to ensure that your wireless card can easily connect to WPA/WPA2 encrypted networks.

9. Wireless network connection of notebook computer

Ten, four. The reason why the laptop wireless network cannot be connected-channel matching is very important. Recommended selection

11. The failure of automatic wireless network connection may be due to channel settings. In general, the channel setting range of the wireless network card is 1-11, while that of the wireless router is 1-13. If the channel of the wireless router is set to 12 or 13, the natural wireless network card cannot connect to the network. Solution: simply enter the Web configuration interface of the wireless router and select any frequency band from 1 to 11 in the wireless settings-wireless channel (see figure 1 for details) to connect the wireless network card to the wireless network. It is recommended to choose "automatic selection", so that the wireless network card will automatically select channels, saving the trouble of user settings.

12 、 5. The reason why the laptop wireless network cannot be connected-the setting of the wireless router is the key to communicating with the network administrator.

13. If the above is normal, but you still can't connect to the wireless network, sometimes it clearly shows that the wireless network signal is very strong, but you still can't connect to the wireless network. This shows that wireless routers are limited, such as MAC address binding, IP address filtering and other security measures. If you are a user who has access to this wireless network, you should contact your network administrator directly and ask him to help you see if your laptop is not set up through a wireless router. The problem is easy to solve. But if you "borrow" someone else's wireless signal, there's nothing you can do about it.

14. Laptop wireless network

15. VI. The reason why the laptop wireless network cannot be connected-- turn on mixed mode.

16. If the new notebook (11n wireless card) can connect to the wireless network, but the old notebook (11g wireless card) cannot, it is likely that the wireless router has set the wireless mode to "11n mode". So 11g and 11b wireless cards naturally cannot connect to the wireless network. Solution: enter the Web configuration interface of the wireless router and set the network mode to 11b/g/n mixed mode, so that no matter which standard wireless card you use, you can easily connect to the wireless network.

17. This is why the wireless network of the laptop shared by Bian Xiao above is not connected. I hope it helps you.

At the end of this article, I hope it will be helpful to you.

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