Why won t my Mac connect to WiFi? And it shows like this

1. First of all, make sure that your router is not working normally, you can use other mobile phones or digital products to connect to the wifi hotspot If you can connect and surf the Internet normally, then generally speaking, this wireless router can work normally.

2. Secondly, make sure that the mobile phone with a problem with the wifi connection does not have the option to turn off the network in the sleep state, and there are many children's shoes that their mobile phones will be disconnected after a period of time or can not receive the information of the background chat software, most of them are because they inadvertently or mistakenly turn on the option of turning off the network from the mobile phone.

3. Wireless router problem:

1) Dead cycle - many wireless routers sometimes have a connection into a dead loop, that is, they keep getting IP and keep connecting, but they just can't connect to the wifi hotspot. - Let's try the all-purpose fix - restart. After turning off the power of the wireless router completely, turn it back on again after about 10 minutes.

2) Whether there are too many WiFi connected devices - too many digital devices connected to the wifi of a wireless router will put a lot of pressure on the wireless router, and it is easy to cause IP conflicts and cannot be connected - such a problem can be solved by setting a static IP for each device connected through WiFi.

It should be a bad signal, change to a good wifi

The wifi name is replaced with English letters, do not bring Chinese.

The wifi is connected, but there are several situations where you can't get on the network

1. The router with wifi turned on is not connected to the Internet.

This situation is also often encountered, the wifi at home will often be encountered, sometimes you don't pay attention to the network cable, the cat is cut off, or the cat has not been restarted for a long time, the weather is too hot, dust accumulation and other reasons cause the cat to crash, which will cause the router to be disconnected, and it is possible that the operator has a failure to cause the network to be disconnected.

This router is clear when you look at it, the one in the figure below is connected to the Internet, if the connection status of the WAN port is all 0, it means that there is no connection to the Internet.

2. The router is overloaded, and some users are squeezed to the point that they can't access the Internet or the network speed is almost 0

Routers have a maximum load, dozens of dollars and one or two hundred dollars of routers, all of which are SOHO routes, small routes, home routes, can only bring a few devices, not too much, how these routes are connected by dozens of users at the same time, poor performance may be directly hung up, good points, will last for a while, but dozens of users at the same time Internet access, it is estimated that they will be tired and half dead, resulting in some users inexplicably disconnected and not connected to the Internet.

3. If the router is used for a long time, there will be inexplicable problems.

Some routers have been used for a long time, dust accumulates inside, static electricity is raging, and problems are inevitable, sometimes even if they are restarted, it is useless, and it is not useful to restore the default factory settings.

4. The router you are connected to, your local Mac is restricted.

In this case, the owner of the router doesn't want too many people to access the Internet, and then adds the MAC address to the limit, resulting in being able to connect to the wifi, but the communication data between your unit and the external network is intercepted by the router, and it still can't be connected.

Wi-Fi precautions:

First, be cautious about using WiFi hotspots in public places. The WiFi provided by the official organization and has a verification mechanism can be connected and used after confirmation by the staff. Other public Wi-Fi that can be connected directly and do not require verification or password are risky, and there may be phishing traps behind them, so try not to use them.

Second, when using WiFi hotspots in public places, try not to conduct online shopping and online banking operations to avoid important personal sensitive information being leaked or even being hacked for bank transfers.

Third, develop good WiFi usage habits. The mobile phone will record the wifi hotspots used, if the wifi switch is turned on, the mobile phone will continue to search for the surroundings, once it encounters the hotspot with the same name, it will be automatically connected, there is a risk of phishing.

What to do if your Mac won't connect to wifi.

Before you start to solve the problem, you need to confirm whether the current wireless Wi-Fi network has been connected to a valid Internet network. At this time, use a mobile phone or other device to connect to the wireless network to see if you can access the Internet.

If other devices are connected to the wireless.

After the wifi network, if you can access the Internet normally, it means that it is now.

Problems with the Mac computer system. Next, please click the icon in the upper left corner of the screen, and then click the [System Preferences] column in the menu, as shown in the system preferences window, please click to open the [Network] function icon to enter the network settings interface.

In the Network Settings window, select the one on the left.

Wi-Fi section, and then click the [Advanced] button at the bottom right.

Next in. wi-fi

In the settings screen, click on the top.

Followed in DNS

Below the server, you can see the current one.

Mac gets automatically.

DNS address, in this case, please double-click with the mouse, and you can proceed.

As shown in the figure below, it is recommended to fill in a better one here.

DNS address, for example.

Then click the OK button.

In the network settings screen, click the [Apply] button to save the current changes to the DNS address.

This method is through modification.

Mac computer system.

DNS to solve the problem of not being able to access the Internet, if there is no accident, the network can be accessed at this time.

The wifi connection is connected, but the internet cannot be connected in the following cases:

1. The router with wifi is not connected to the internet.

This is also a common occurrence. Sometimes you will also encounter a wifi network at home. Sometimes the CAT is cut off, or it has not been restarted for a long time, or the weather is too hot, dust accumulates, etc., which causes the CAT to crash, which will cause the router to cut off the network.

It will be clear once you check into the router. In the image below, it is connected to the internet. If the connection status of the WAN ports is 0, it means that it is not connected to the Internet.

2. The router is overloaded, and some users are too crowded to access the Internet, or the network speed is almost zero.

The router has a maximum load, tens of dollars of router control element, SOHO routing, routing, small house routing, can only take some equipment, not too much, how to route by dozens of users connected at the same time, poor performance may be directly hung up and better and will remain for a while, but many users at the same time surf the Internet, it is estimated that they have to be tired and half dead, resulting in the death of some users inexplicably falling without Internet connection.

3. When the router is used for a long time, there may be unexplained problems.

Some routers have been used for a long time and have problems such as dust accumulation and static electricity, which will inevitably cause problems. Sometimes restarting the router and restoring the default factory settings is useless, which is rarely used. The life of such a router is over, so please replace it.

4. Be connected to a router with a Mac that is restricted.

In this case, the owner of the router does not want too many people to go online, and then adds the MAC address to the limit so that you can connect to the wireless network, but your local and external network communication data intercepts the router but still can't connect.

Mac WiFi shows that it is successfully connected, but the reason why it can't connect to the network may be that the wireless network signal is in the same frequency band, so the Mac can't connect to WiFi, the specific solution steps are as follows:

1. First, click on the Wi-Fi icon at the top, and select "Open Networking Preferences" from the drop-down menu.

2. Then in the network preferences, click on the "Senior Room Talk" option.

3. Select the name of other useless WiFi and click "—" to delete the useless network to solve the problem that Mac WiFi shows successful connection, but can not connect to the network.