Why some wifi can t be connected?

I often help relatives and friends to install wifi at home, and some people are rubbed on the net, and I also help solve it. So I know why some of them used to be able to go to my home wifi but can't.

Let's explain the MAC address first, everyone's wireless device has a wireless network card, and the network card has a production number, which is the same as the ID card, which is a string of numbers and English.

First, you have someone else's password, someone else has blocked your MAC address, or the speed limit is very low.

Second, if someone else doesn't set a password, someone else sets the MAC address to a specific MAC address to be able to load and drop data, which is to block your MAC in disguise.

These routers are good-looking and only serve the interior.

There are also some CMCC and Chinanet and the like, these are mobile and telecom routing signals, only mobile and telecom numbers are allowed to be used for free, but some are connected to enter, you can buy one, 1 cent a day!

If you want to go online, you can find a café, or McDonald's can provide free Internet service, or in the community, you can find a lot of wifi that does not encrypt or shield the MAC address, you can rub it, there is a person in my community, 20m optical fiber, no password, I rub his house, I am in the middle of the night when he sleeps I get off. Although my family is also 10 trillion, but with his follower.

Pure hand hitting, looking.

No network, just a router.

If you are using a Huawei phone and can connect to Wi-Fi but cannot access the Internet, you can use the following methods to troubleshoot the problem:

1. If you are using a home network, it is recommended to connect to other WiFi or mobile phone personal hotspots for testing and troubleshooting

1.If connected to other wifi is normal.

1) Please do not stay away from the router;

2) Please check whether the broadband account expires, restart the router and restart the phone before trying;

3) If the router has been set to the blacklist and whitelist, you need to check whether the MAC address of the mobile phone is added to the router, if the router does not set the blacklist and whitelist, please power off the router and restart the attempt.

2.If you connect to other wifi, you can't get online.

1) Please turn the WLAN switch back on and try to connect;

2) It is recommended to search for Restore Network Settings in Settings and follow the on-screen prompts to restore. (Note: This restores the Wi-Fi, mobile data, and Bluetooth connection records and deletes the Wi-Fi and Bluetooth connection records).

2. If you are using a public network:

1.Try using it in a place with a small amount and confirm that the hotspot is working properly.

2.Please check if you need to log in through a browser** to register before you can access the Internet.

3. If individual applications are not available online:

Please open Settings, enter Traffic Management in the search box above and click to enter the Traffic Management page, click Application Networking, and check whether the WLAN permissions are checked for individual applications.

If the problem persists, we recommend that you back up your data (third-party apps such as QQ and WeChat need to be backed up separately) and bring your purchase voucher to the Huawei Customer Service Center for testing.

1. After the mobile phone wifi has been connected and cannot be connected to the Internet, first detect whether it is a sudden problem of the mobile phone itself, and then turn it off and restart it to see if there is still such a situation. Or use other mobile phones or devices to connect to the wifi to try whether you can access the Internet and rule out the WiFi itself.

2. If it is not a problem with the mobile phone, if there is a problem that the mobile phone wifi has been connected and cannot be connected to the Internet, we can also restart the router to see, or restore the router to factory settings, and then dial up the Internet again, and re-set the wifi according to the setting wizard, or replace the new router and then dial up to connect to the Internet.

3. See if the router has a red light on, or contact the broadband customer service directly, there will be a number on the router, and then confirm whether the broadband is abnormal, such as arrears, recharge the broadband, and then dial the connection to try.

4. If our wireless wifi name has Chinese, we can try to change the name to test again, it is recommended to modify it to English or a combination of English and numbers and then connect.

5. If the above methods can't be solved, it should be a problem with the phone itself, we can restore the factory settings and try again, if not, it is okay to go to the nearby after-sales service to check it.

Other reasons. The router is unstable, and the quality of some wireless routers and optical modems (broadband modems) is relatively poor, and a series of problems such as crashes will occur after long-term operation.

Broadband failure, if your home wifi, you can access the Internet after connecting before, suddenly there is a problem of not being able to access the Internet, and the router and cat have been powered off and restarted, but it is still unusable after connecting to wifi. It is very likely that there is a problem with the broadband line, or the broadband is in arrears.

The network signal is not good, so I can't connect.

Hello, wifi signal regardless of whether there is a network mobile phone and other equipment can be connected, the user can not use the network after connecting to wifi, first confirm whether your broadband line is smooth, you can check whether the indicator light of the broadband cat has LOS red light flashing, if there is a broadband failure, so the router's wifi can not use the network, at this time, the user can call the operator's customer service to report the fault processing, after the fault report, there will be staff to come to the door to troubleshoot.

If the broadband modem can be connected to the network normally, then it is a problem with the router, and you can check whether the network cable is connected correctly. If the network cable between the broadband modem and the router is normal, you can restore the router to its factory value, and then reset the router parameters to see if it can be restored to normal

2. Then open the browser and enter the management address and login password of the router.

3. After logging in to the background, click the setup wizard, and then fill in the corresponding parameters according to the wizard instructions.

<>6. After the wireless setting is completed, click Save, and then restart the router to use it normally.

Wifi connection into a lease is renting but can not make the bad luck is a common failure, the following is a specific solution to the clear method.

1. Open "Network Connection" to see if the network connection of the computer is "shared", if the wifi is not shared, it cannot be used normally.

2. Check whether the firewall of the computer is turned off, the firewall of the computer will also affect the use of wifi.

3. Check if there is a problem with the computer's network and try to reconnect.

4. Check if there is a problem with the router and try to unplug the router and restart it.

5. Check whether there is a problem with the driver of the computer and update the driver.

Is it a trace of dry wifi without a network posture hole, Lianzen Tsai network operator to deal with it.

It may be that the bandwidth and password set by the router are entered incorrectly, or it may be that you owe money

Because there is no network, you can't use it.

Summary. Cause 1: Router problem, the router may be overheated or damaged; Restart the router to try, or restore the router to factory settings, then dial up the Internet again, and reset the wifi according to the setup wizard, or change to a new router and dial-up to connect to the Internet.

Reason 2: Broadband payments may be in arrears, resulting in inability to access the Internet; Contact broadband customer service to confirm whether there is any abnormality in the broadband, such as arrears, recharge the broadband, and then restart the optical modem and router connection.

Why can't I use it when I connect to wifi?

Reason 1: Router problem, maybe the router is overheated or damaged; Restart the router to try, or restore the router to factory settings, and then dial up the Internet again, and reset the wifi according to the setup wizard, or change to a new router and dial-up to connect to the Internet. Reason 2:

There may be broadband arrears, resulting in inability to access the Internet; Contact broadband customer service to confirm whether there is any abnormality in the broadband, such as arrears, recharge the broadband, and then restart the call and connect with the modem and router.

Reason 3: The wifi name contains Chinese, which causes some mobile phones to fail to connect to the upper touch network; It is recommended to change it to English or a combination of English and numbers before connecting. Reason 4:

There is an error in the wifi setting of the mobile phone, you only need to select [forget] on the connected wifi, and try to re-enter the password to connect to the wifi. Reason 5: Mobile phone system problems, Xiaojingqing may have a problem with the system, resulting in connecting to wifi but unable to access the Internet; If the above reasons are ruled out, it is likely to be a problem with the mobile phone system for a long time, and it is recommended to restore the factory settings or flash the phone to see if it can solve the problem.

Reason 3: The wifi name contains Chinese, which causes some mobile phones to fail to connect to the upper touch network; It is recommended to change it to English or a combination of English and numbers before connecting. Reason 4:

There is an error in the wifi setting of the mobile phone, you only need to select [forget] on the connected wifi, and try to re-enter the password to connect to the wifi. Reason 5: Mobile phone system problems, Xiaojingqing may have a problem with the system, resulting in connecting to wifi but unable to access the Internet; If the above reasons are ruled out, it is likely to be a problem with the mobile phone system for a long time, and it is recommended to restore the factory settings or flash the phone to see if it can solve the problem.