What are the reasons why the wireless network is always unconnected?

If the wifi is not connected normally, it may be impossible to access the Internet;

2.Router problems, which may be overheated or damaged;

3.There may be broadband arrears, resulting in inability to access the Internet; The name contains Chinese, which makes some mobile phones unable to connect to the Internet;

5. There may be a problem with the mobile phone system, which may cause the connection to wifi but the Internet cannot be accessed.

Question: I'm connected to the neighbor's wireless network, the password is correct, I can still play a few days ago, I can still play yesterday, I can still play just now, and now it suddenly shows that I can't connect.

I can connect it, but I just keep going in circles.

I wondered if he gave my phone from the Internet and quarantined it. [Left covering face] I wondered if he gave my phone from the Internet and quarantined it. [Left face covered] replied that it should be broadband arrears, or the other party set it up.

There should be no arrears in asking the question, which means that there is only a second possibility.

First, make sure your router is set up correctly.

1. The problem of setting the IP address of the computer.

1) When connecting to the router to surf the Internet, you need to set the IP address on the computer to be automatically obtained (dynamic IP).

Dynamic IP address configuration of the computer.

2) If the administrator of your network requires a fixed IP address to access the Internet, please fill in the correct IP address, subnet mask, gateway and DNS server address in the local connection.

2. Check whether the network is normal.

1. First of all, open PC Manager and select the toolbox in the lower right corner.

2. Select the network repair tool.

3. Click Fix Now.

What's wrong with a computer not connecting to a wireless network?

What is the reason why the mobile phone wifi connection is not available?

This is the most common problem, it may just be a temporary connection into a loop, the easiest solution is to unplug the router power interface, let the router restart, this can solve 90% of the problems caused by the router. Of course, it is also possible that the router has a hardware failure, which can only be sent for repair. Now the router** is not expensive before 50-200 yuan.

Generally, this kind of problem occurs in the work environment, or in public places such as cafes and shopping malls that provide free Wi-Fi. If you don't have the permission to change the settings of your router, you can only try to avoid surfing the Internet during peak hours, or connect to the Internet in advance. If there is an IP conflict, it is necessary to assign IP to each connected device in the router to avoid affecting each other.

The mobile phone receives the wifi signal by relying on the wireless network card in the mobile phone. Some mobile phone wireless network cards have been eliminated or seriously aged, which will cause poor wifi signal reception, and even a ** call will lead to the wireless network disconnection, which can only be repaired by the maintenance center.

The baseband is the module responsible for communication, and often a mobile phone has multiple basebands to choose from. If you brush an inappropriate baseband when you are flashing the ROM, it may cause your wifi connection to be abnormal, and even the text message cannot be sent, and the ** cannot be sent. In addition, if the ROM itself is not perfect, then there will also be the problem of an abnormal WiFi connection.

For example, as soon as Android was released, some friends brushed the beta version of CM10 (framework-based third-party ROM), and the result was unable to connect to WiFi, which had to be solved by re-flashing a more complete ROM.

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The wireless suddenly failed to connect because the wrong wireless password was entered and the Mizi Huai code was changed.

Under normal circumstances, we use a wireless router to connect to the Internet, so when we encounter a wireless network, we cannot connect to the wireless network. First of all, you must carefully check the connection password of the wireless network you are into, which is very important. Because if the password you enter is wrong, then you must not be able to connect to the wireless network, so everyone should be very aware of this.

If you are sure that you have entered the correct password for your wireless network, but you still can't connect to the network successfully, then we need to check the configuration of the wireless router.

Ways to check the cause:

If the DHCP server of the wireless router is not enabled, then we will definitely not be able to successfully obtain the corresponding IP address, and we will not be able to connect to the network.

For users of Windows 7 and above, if you can't find the reason why you can't connect to the wireless network, you can open the Windows Network Diagnostics to check. If the system is a problem that can be solved automatically, then it also saves us a lot of energy and time, which is very good. <>

The reasons why you suddenly can't connect to the wireless network are as follows:

1. The wireless module of the device is turned off;

2. The wireless router is powered off and shut down when the power is off;

3. The wireless router machine Zhaoxin confessed that the owner turned off the wireless router;

4. The wireless router was hacked, and the intruder changed the wifi password;

5. The WiFi password of the wireless router was changed by the owner;

6. The wireless router is set up with a timed dial, and the current time of the family exceeds the last dialing time;

7. The owner of the wireless router turns on the MAC address filtering of the wireless router and rejects the device;

8. The device exceeds the effective signal transmission range of WiFi.

This is normal,1 Because your wireless does not have a fixed IP address, turn on the wireless first, and then turn on the desktop and be squeezed out.

2. Because your wireless network card is not strong, it has been squeezed down by others.

3. Your wireless network card and router don't work well together!

I've used a variety of books, but I've never encountered this situation! Right-click on the taskbar (Wi-Fi) - select (Fix) to give it a try! No, you should uninstall and reinstall the wireless network card driver first, and then redo the system if it doesn't work, and then send it to repair and disassemble the machine to check if the wireless network card is not bad!

I hope to solve your problem) -- check the computer problem, can not clearly judge the fault is **, you must first soft and then hard, one by one. Hardware substitution is preferred! Clean up the dust--- unplug and replug, haha, that's my little technician's repair skills.

Hello friends! There are many problems with wireless network connection, such a problem is really tangled, what makes people more anxious is to use the network in a hurry, in the face of such a problem, don't worry, first of all, there are many kinds of such situations, if it is a notebook, see if the wireless network card switch is on, or whether it is pressed to the shortcut key, whether there is a problem with the network card driver, whether the route is bound to the mac and other issues.

Check whether the power supply is stable or restart the wireless router and manually configure the IP address.

2 Key Verification Error: In the router management interface, unenable "Turn on security settings".

4 Improper MTU Setting: The default MTU value of the router WAN should be 1500. If not, change it back. (1480 MTUs are required for some PPPoE connections).