Noise is expressed using the same scale as RSSI, but in this case you want it to be as close to -120 dBm as possible. Noise is a measurement of interference your computer is receiving, and can be due to a variety of things. If you go much lower than -80 your Wi-Fi is going to be practically unusable. Acceptable RSSI is in the -40 to -80 range. RSSI is an indicator of Wi-Fi signal quality and ranges from 0 dBm (the strongest) to -120 dBm (the weakest). Take note of the information shown about your connected Wi-Fi network displayed in Figure A, and look for two values: RSSI and Noise. The most common Wi-Fi problems are channel congestion and a weak signal, and to solve the problem of the latter you don't even really need to open the Wireless Diagnostics app.
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How to fix signal issues without the Wireless Diagnostics app It displays things like latency, failure, and channel congestion. Sidecar: This is another visual representation of Wi-Fi data. When you stop it it creates a report in the same directory as the automated Wireless Diagnostics report. Sniffer: The sniffer captures Wi-Fi traffic for as long as you leave it running.
Performance: This is a visual representation of the speed, quality, and signal strength of your Wi-Fi connection displayed in real time, and can be very valuable for determining which areas of your house have the best connections. As shown in Figure E, rebooting a Wi-Fi router can make it automatically select a better channel, or you can use the information provided here to set the channel yourself (refer to your router's documentation to learn how). It shows you details about all Wi-Fi networks in range of your Mac and provides recommendations about which channels are the best for 2G and 5G networks. Scan: The scan tool is one of the most valuable in the Wireless Diagnostics app. Logs: Here you can choose to turn on active logging for Wi-Fi, EAPOL, and Bluetooth. This is a decent way to get a quick summary of your network and its status, displayed in real time.
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Info: This shows you a full rundown of your Wi-Fi network: Name, MAC address, quality, channel, IP address, and more are all displayed. The tools can help visualize the status of your network, give you real-time feedback about network conditions, and help you determine what to do to fix problems.Īssistant: This is the automated diagnostic tool that automatically launches with the app, discussed above. Where to find the different tools included in the macOS Wireless Diagnostics app.
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