What to do if the wifi suddenly can t be connected

What should I do if I can't connect to wifi at home?

The reason for suddenly not connecting to wifi may be a faulty router, multiple devices connected at the same time, exceeding the coverage of the signal file, or a faulty wireless network card.

The mobile phone cannot connect to wifi is generally caused by abnormal mobile phone network settings, or the mobile phone does not turn on the wifi function at all. Router malfunction, this is one of the most common causes of problems, when the phone cannot connect to Wiifi, most of it can be attributed to the damage of the router. Of course, it is also possible that the router is stuck in an endless loop for a short time.

Then the solution is to directly unplug the interface of the router and restart.

Introduction to wifi:

Also known as Hejizuo Mobile Hotspot in Chinese, it is a trademark of the Wi-Fi Alliance manufacturer as a brand certification for the product, and is a wireless LAN technology created in standards. Due to the close relationship between the two systems, Wi-Fi is often used as a synonym for standards. Wi-Fi is often written as WiFi or WiFi, but they are not endorsed by the Wi-Fi Alliance.

Not every matching product applies for Wi-Fi Alliance certification, and a relatively lack of Wi-Fi certification does not necessarily mean that the device is not compatible with Wi-Fi devices.

devices are installed in many products on the market, such as: personal computers, game consoles, smartphones, tablets, printers, laptops, and other peripherals that can be connected to the Internet wirelessly. <>

1. It may be that the password wheel is closed, and people change it. Otherwise, it's a matter of assigning an IP. Heavy crack new modification, wifi password and router access password.

2. It is recommended to restart the router and then reconfigure it, if it still doesn't work, it may be a problem with the router.

3. Check whether there are solid walls, metal mesh and other barriers between the computer and the straight line of the router, because these things will weaken the signal.

4. The connection with the router may be unstable because of a slight difference in the acceptance frequency, and there is a suitable frequency for your computer around at this time, so it will be preferentially connected to this router, and you don't have a password, so you can't connect successfully.

1. Check whether the wifi password is correct.

It is recommended to click when entering a password"Eye icon"to display the password and make sure that the password is correct.

2. Reconnect to WiFi

Please go to Settings --WLAN, click on the wifi you need to connect to, and click"Forgot Network Forgot password"reconnect.

3. Check whether the wifi network is normal.

Please compare whether the same wifi connection is normal with other mobile phones, and confirm whether it is the wifi or mobile phone. If it is due to Wi-Fi, please restart the wireless router to check. At the same time, you can enter the router management interface to check whether there are special functions

Such as the number of connections limit, MAC binding, Internet time management, etc.

4. Reset network settings.

Make a backup of wifi and other data, go to Settings - System Management - Backup and Reset - Reset Network Settings - Reset Settings, and then use it to view.

Note: Resetting the network settings will clear the connection records such as Wi-Fi, mobile data network, Bluetooth, etc.; If you have dual SIM, you need to select the corresponding SIM card.

After performing the above methods, if the problem persists, please go to the local vivo customer service center for testing. (Customer service center address: enter vivo official website vivo**app--my--service outlets, after-sales outlets--select provinces and cities to query the address of the customer service center).