m9WiFi suddenly doesn t work, turn it on and turn it off

1) If it is a problem with the broadband itself, first directly connect the broadband network cable to test, if it is a broadband problem, contact the broadband customer service to solve it.

2) If it's a problem with the router, if it can be used originally, it can't be used for the time being, my own practice is to disconnect the power of the router and plug it in, and I'll take a look. In there is a factory reset, from the new strict according to the manual settings can be used, I don't understand, it is not recommended to set it at will (this is under the premise of the correct physical connection, sometimes the router is slow or failed to find the IP address, not that the router is broken).

If it can't be solved all the time, it is recommended to call the customer service of the router, they have **** guidance, I encounter a problem that I can't solve by myself, it is very useful to consult the advice they gave, and they will give the correct advice for your settings or operations.

3) If you turn off the wireless switch, turn it on, if it is a wireless connection with software, it is normal for the software to be difficult to use and often have problems, there is no better way, use a router. In addition, it is caused by the network card driver is not or is not suitable, and whether there is a problem with the network cable interface or network cable.

4) If it is caused by a system problem, it is recommended to restore the system or reinstall it.

5) If you have any questions, please ask me.

Delete the driver and reinstall the driver.

It is a problem to set the power-saving mode, and the software will automatically turn on or off the wifi and other functions according to the power after setting the brother's mess to save the power. Set the power-saving mode to a custom mode, and choose to turn off the envy wifi and other companion options in the custom mode.

Here's how: First, open Settings - WLAN - Menu - Advanced - Check Never turn on WLAN automatically.

First confirm whether the router line is loose, if the connection is normal, restart it to try, if it doesn't work, redial it again, and finally find a telecom operator. The easiest way: do not connect to the router, establish a dial-up connection in the computer, if the normal dial-up is successful, you can access the Internet, then the router problem.

Or disconnect it first, connect the computer directly to the external network, and if there is no problem with surfing the Internet, turn off the router and restart it. If that doesn't work, do a factory reset and reconnect.

2. Reseat the network cable once The network cable from the cat is connected to the WAN port of the wireless router, and the computer is connected to any LAN port of the wireless router.

3. Turn off the cat and the wireless router and turn them on, and take a look later.

Fourth, if it still doesn't work, set up the wireless router again. Does the cat connect to the wireless router, do you do this: plug in the wireless router, don't pick up the cat first, reset the wireless router (restore the factory), connect the computer to any LAN port of the wireless router, enter the router gateway address in the browser address bar (there is on the label behind the router), enter the settings page, and set it according to the PPPoe (ADSL virtual dialing) method.

Then set the SSID, encryption method, and password. Save, restart. After setting, connect the network cable from the cat LAN port to the WAN port of the wireless router.

1. Open the browser of the computer connected to the current wireless router, enter part of the router in the address bar, check the bottom label of the router to know), log in to the web configuration interface of the current router, and the default username and password are admin.

Under Network Settings of the router, first find the WAN port setting option of the router. Setting the "type" correctly here is the crux of the matter. Generally, there are two commonly used types:

PPPoE and DHCP. Choose this according to your own situation. If it is a home ADSL dial-up Internet access, choose PPPoE; If there is a direct network interface available, such as cell broadband or a hotel, DHCP is chosen.

If it is DHCP, there is no need to make other settings, and the router will automatically obtain the corresponding network settings. If you choose PPPoE, you need to fill in the correct username and password, which are provided by network service providers, such as China Telecom, and if you forget your password, you can call 10000 for manual consultation.

Next, check the LAN port settings of the router. The settings of different brands are actually similar, the most important thing is to turn on the DHCP function, so as to ensure that the router can assign an IP address to the device when it is connected to the LAN port or connected to WiFi, and the IP address range assigned by DHCP should be in the same network segment as the IP address of the router, for example.

Finally, check your router's security settings. Check whether you have enabled some security policies that restrict MAC or IP address connections, or the corresponding rate limiting policy, and if so, turn them off, otherwise only devices with specific MAC or IP addresses can connect.

Second, the method of the mobile phone is not good, enter the settings interface, and change the wireless SSID name of the router to all numbers;

3. Wireless setting of wireless channel is changed to 11;

Fourth, wireless mode, the default is 11B g N, changed to 11G only; Fourth, there is an advanced setting in the wireless settings, remove the tick to turn on WMM, and click to save and restart the route.

1. The router is unstable.

Some wireless routers and optical modems (broadband modems) are of poor quality and will crash after a long period of operation.

Solution: Turn off the power of your home wireless router and optical modem (broadband modem), wait for a few minutes, and then turn on the power and start the device. After the normal start, connect to the wifi test to see if it can be used normally?

WiFi is connected and not available for internet access.

Second, the broadband is faulty.

If your home wifi was connected to the Internet before, suddenly there was a problem of not being able to access the Internet. And the router and cat have been powered off and restarted, but it still can't be used after connecting to wifi.

In this case, it is very likely that there is a problem with the broadband line, or the broadband is in arrears.

Solution: 2. If there is no arrears, you can transfer to manual customer service, report the fault, and let the operator arrange staff for maintenance.

At this time, if the computer can access the Internet, it means that the broadband line is normal and there is no problem. On the contrary, if the router is not used and the computer is directly connected to the cat, the computer cannot access the Internet, and most likely there is a problem with the broadband line.

3. The router is not connected to the Internet.

If there is no problem with your broadband line, there is no arrears in your bandwidth, and your broadband carrier is not responsible for debugging your router. So, at this time, check the relevant configuration in your router.

You can use a computer or mobile phone, log in to the router's settings page first, find and open the option of Internet access settings or WAN port settings, and you can see the router's networking status information.

WiFi is connected and not available for internet access.

1. Check the line connection.

Ordinary network cable routers have 1 WAN interface and 4 LAN interfaces (some routers only have 2 or 3 LAN interfaces).

1) The WAN interface on the router needs to be connected to the network port of the cat with a network cable. If you don't use the cat for your home's broadband, you need to plug the broadband network cable into the WAN port of the router.

2) If you have a computer at home, you need to connect to the LAN interface with a network cable, any LAN interface is OK.

Answer: Open the phone's [Settings], click [General], and then tap [Restore] - [Reset Network Settings], and then reconnect. If you can't connect, then it may be due to a problem with the wifi itself, then you can try to restart the router and check whether the network cable connection is normal, if it still can't be solved, you can call the operator** to inquire.

Turn off the wifi switch first, then turn it on and search again. If you haven't already, just see if the router is working properly, generally there are three lights flashing when the router is working, or try whether a ** machine can access the Internet, if the desktop can't be on, consider whether the network fee is due.

Your own? Or is it someone else's?

Go to Settings Wi-Fi and open Select your home WiFi Fill in the password (if there is no password box, select not to save) connection.

This may be caused by software conflicts, etc., it is recommended to restore the phone to the factory settings state and try again, which can generally solve the abnormal function caused by software and system problems.

If the problem persists after the phone is restored, it means that the device hardware is a problem and it is recommended to send it for repair.

"If the wifi signal of the mobile phone is weak or unstable, resulting in frequent drops, it is recommended:

1.Check if other devices have a good or full signal to connect to the wireless network.

2.Check to see if there are many devices connected to the wireless network.

4.If it is a home router, it is recommended to disconnect the power supply for a while and try to plug it in again.

5.If you are using the network operator's wireless network, it is recommended to try a different location.

6.Try a different wireless network.

7.Back up the data in the machine (e.g., contacts, text messages, multi**, etc.), and then restore to factory settings.

If the problem persists after the above operation, please bring the purchase invoice, repair card and machine to the nearest service center for inspection. "

Hardware problem, wifi module is loose.

Hi! Try Shuangqing. If not, it is recommended to go to the after-sales inspection.

1.Click on the System Update icon - Menu - Reboot to recovery mode (this is recommended).

2.In the power-off state, long press the "Volume Down + Power button.""

Entering with the second method will appear, select Recovery Mode (in all of the following operations: Volume down = Select, Volume plus = Confirm).

After completing the above operations, an Android robot will be displayed in the interface, press the power button to enter the recovery operation interface.

Double Wipe is what we often call Double Clear, select Wipe Data Factory Reset, enter Yes, and then select Wipe Cache Partition after completion.

Workaround:

1.Turn off the ** server settings for wifi.

2..Ignore (do not save) the network and reconnect.

3.Upgrade to the latest version of MIUIV4.

4.If it works fine in this environment with other devices, it is recommended that you disconnect the device and reconnect it to see if it can be used normally. 5.If it is a corporate network, you can contact the company NMS for troubleshooting or assign a static IP address to solve the problem.

6.It is advisable to update the router firmware to try to resolve the issue.

7.Disable or uninstall the third-party optimization software and try again.

8.Clear all data and try again.

9.Please go to the repair point for testing.

The Wi-Fi cannot be connected after turning off the WLAN. That's why you can't access the internet.

It is recommended to buy data on a monthly basis for mobile Internet access.

If you build your own wifi, you don't have to charge (but it's best to turn off the mobile network of the phone itself when using wifi to connect to the Internet), but if you use the operator's wifi network, you may be charged.

No, turning off WLAN will not affect your Wi-Fi connection.

The wifi was turned off, and of course it couldn't be accessed.

1. Although the wireless router of the wifi transmitter is turned on, the cat in front of the wifi is not turned on, or there is no networking.

2. Are you sure you're connected? Or did you only find a signal and haven't entered your password to log in?

3. The wifi of some shopping malls can be connected, but you can only browse their **, which is a bit stingy.

In response to your question added:

The company's net, sometimes on, sometimes not.

First: the wifi signal is not strong enough;

Second, the mobile phone reception signal is weak.

If your phone cannot connect to the Wi-Fi network, please try to do the following common situations:

1.If you could connect before, you can't connect now:

2) Check if the Wi-Fi password entered is correct.

2.If you can't connect for the first time or can't connect to a public Wi-Fi:

Check whether other devices under the same wireless network are connected properly and whether connection restrictions are set on the wireless network.

3.If you cannot connect to the wireless network with the Chinese name:

Due to device compatibility issues, some wireless networks with Chinese names or special characters may not be able to connect, it is recommended to change the wireless network name to English.

Please check whether the router connection is normal (the cat cannot be connected), turn off the phone and the router and restart it before trying to connect.

5.If none of the above operations work, it is recommended to back up important data (contacts, text messages, **, etc.) and try to restore factory settings.

If the problem persists, please bring the purchase receipt, repair card and machine to the Samsung service center for inspection.

You turn on and off the phone and try it once to see, the problem with the mobile phone may be.