Unreliable WiFi on MacBook: how can I measure how "unreliable" it is?

Solution 1:

So, how can I measure the quality of a WiFi connection

Use Apple's built in WiFi Diagnostics

Hold the Option (Alt) key while clicking on the WiFi logo on the menu bar. You'll be presented with two diagnostic options:

• Create Diagnostic Report
• Open Wireless Diagnostics

The Report is what you're going to want to submit to Apple.

There's an excellent support document, If your Mac doesn't connect to the Internet over Wi-Fi that goes into in depth detail.

You can also get signal quality information via the airport utility and measuring the SNR values via Terminal, but basically, you'll issue the command:

$ airport -I