MacOS has a native utility that helps you understand the state of the network to seek improvements for the Internet connection. The system wizard, available on any Mac, lets you know the noise level and signal strength coming from the router, and shows if your computer is connected to a congested network.
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With this information in hand, the user can make the necessary adjustments to clear the path and make the internet faster at home. See three tips on how to use the Apple program to enhance the internet on your MacBook or iMac.
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Problems with Wi-Fi and possible solutions
1. Discover the Wi-Fi channel
Most routers are configured with 2.4 GHz Wi-Fi, which allows the best connections on channels 1, 6, and 11. Because the amount is limited, it is common for nearby routers to be together in one channel, congesting the network, and reducing the connection even on channels considered good for the 2.4 GHz network. To solve the problem, you first need to find out the channel on which your network is operating.
Step 1. Press the option key on the keyboard and click on the network connection icon. In the menu, select the option "Open wireless network diagnostics";
Access the Mac Network Diagnostic Tool
Step 2. Open the "Window" menu and select the "Analysis" option;
Start network analysis
Step 3. The wizard will list all nearby wireless networks detected by the Mac's Wi-Fi antenna. Select the arrow to the right of "RSSI" (network signal) to list your network in the first position. In the "Channel" column, see if the nearest network, just below, is on the same channel. When this occurs the risks of interference increase;
See if there are nearby networks on the same channel
Step 4. In the left pane, the diagnostic tool shows you which are the best channels at the moment for the 2.4 GHz frequency.
See the best channels to connect
2. Change the network channel
Already knowing the best channel, it is important to change it on the router. The simplest way is to restart the device, either by using a reset button or by pulling and putting the device back in the socket. Because routers are programmed to fetch the best channel automatically, the tendency is for the problem to be resolved with a simple reboot.
Step 1. Alternatively, you can change the channel manually in the settings panel;
Restart the router or change the channel manually
Step 2. Next, go back to the Mac analysis tool to confirm channel switching. It is important that nearby routers are operating on different channels.
Check out the channel change
3. Find network blind spots
The macOS network diagnostic tool also allows you to monitor the variation between noise and signal strength to measure the quality of the connection. In 5GHz networks, which are practically not suffering from channel congestion, this is one of the options to improve the speed.
Step 1. Open the "Window" menu and select the "Performance" option;
Access the Network Performance Tool
Step 2. In the third graph, the green line shows the strength of the signal, and the blue line the noise level in the network. The lines are close at blind spots on the Wi-Fi, where the connection tends to fall. Move the computer around the house to find the best connection point. The further away the lines, the better.
View noise and signal strength levels
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