When I look at my wifi.log, I get the following output:
Note that it's adding a few lines every few seconds. What's going on? Should I be concerned that it seems to be "changing quality" every few seconds?
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1.What are "Scan requests":
The scan requests are the system (the airportd dameon) scanning for available WiFi networks. The precedure maybe runs like this:
("scan cache updated" will show due to a fresh scan result)
Shown in the picture,Google Chrome may trigger the scan frequently.Close chrome and QUIT chrome should stop this "annoying" loop.