Interesting Troubleshooting Cases, Part 4 - The suddenly weaker Wi-Fi
Note: This article is part 4 of a 4-part troubleshooting series, with more in-depth information about a TEN talk at WLPC.
Part 1 - The RADIUS connection
Part 2 - Zoom issues
Part 3 - Breaking other Wi-Fi
Video recording from WLPC Prague
Incoming Ticket: The Wi-Fi is weaker now. Getting fewer bars, lower throughput on my Macbook Pro. Dropping out of Wi-Fi ofter.
Looking at the client device, I see a Macbook Pro 2018, and the signal and SNR are more than 10 dB less than usual. Not just a bit of fluctuation as expected between clients, but significantly weaker.
The other issue that stood out was that doing a lot of traffic right next to it dumped the SNR. Doing a speed test on an iPhone right next to it kicked the Macbook out of the network.