To open Wireless Diagnostics on a Mac, hold the Option key and click the Wi-Fi icon in the menu bar or Control Center, then select Open Wireless Diagnostics. This built-in tool analyzes your Wi-Fi connection to help troubleshoot issues like slow speeds or disconnections.
How to open wireless diagnostics on mac
- Apple says to quit all open apps first before starting Wireless Diagnostics.
- Join the Wi‑Fi network you are having problems with.
- Choose Open Wireless Diagnostics from the dropdown menu.
- Follow the onscreen instructions to complete the analysis.
What to do after the analysis finishes
After the analysis completes, click the Info buttons in the Summary pane to see details on any detected issues. If you need to locate the diagnostic report file, open Go > Go to Folder in the Finder menu bar, type /var/tmp, and press Return. The report is stored in that folder and can be shared with support or reviewed later.
What wireless diagnostics can and cannot do
Wireless Diagnostics helps analyze the network’s connection to the internet when you can connect to the Wi‑Fi router but have trouble loading pages, email, or streaming. It includes a Performance Analysis feature that measures signal-to-noise ratio, packet loss, and latency. It also includes a Wi-Fi Scanner that detects all available networks and shows signal strength, channel number, and security type to identify interference. For advanced users, it allows packet capture to analyze network traffic and identify devices or applications causing congestion. It does not change your network settings, it only reports what it finds. Apple documents Wireless Diagnostics for Mac only; it does not provide steps for iPhone or Android in its official Mac help pages.
When to use other troubleshooting steps
If Wireless Diagnostics does not resolve the issue, you can explore related guides on router speed and signal strength. On iPhone or iPad, if the Wi-Fi setting is dimmed, Apple says to restart the device. Also on iPhone or iPad, Apple says to go to Settings > Wi-Fi and make sure Connectivity Assist is off. For example, you might look into setting up wireless connections to optimize placement or configuration, or search for advice on how to make my wireless router faster to improve overall performance.
Frequently Asked Questions
Can I use Wireless Diagnostics on macOS Catalina or later?
Yes, the steps to open Wireless Diagnostics are the same on macOS Catalina and later versions. Hold Option, click the Wi-Fi icon, and select Open Wireless Diagnostics.
Does Wireless Diagnostics work with Bluetooth problems?
Wireless Diagnostics is primarily for Wi‑Fi issues. For Bluetooth diagnostics, hold the Option key while clicking the Bluetooth icon in the menu bar to access a separate Bluetooth Diagnostics feature.
Where is the Wireless Diagnostics report saved?
The report is saved in the /var/tmp folder. Open Finder, choose Go > Go to Folder, type /var/tmp, and press Return to locate it.
Can I use Wireless Diagnostics on an iPhone or Android device?
No. Apple documents Wireless Diagnostics only for Mac. iPhone users can access a separate Diagnostics Mode by turning off the device, then pressing and holding the side button during startup and tapping Diagnostics Mode. Apple says the iPhone Diagnostics Mode requires access to a Wi-Fi network.
What should I do if Wireless Diagnostics finds no issues but I still have problems?
If the tool reports no problems, try restarting your router and Mac, checking for interference from other devices, or contacting your internet service provider for line or signal issues.
