Using 2017 MBA with High Sierra. Randomly drops the internet connection. Sometimes several times per hour, sometimes once a week. Most of the time it also drops the WiFi connection.
- Have tried turning WiFi on and off
- renewing DHCP lease
- rebooting things
All of these work or not on a random basis.
I rule out the WiFi network itself since all my other devices maintain the signal with no problems (2017 iMac w/High Sierra, 2007 iMac w/ Sierra, 2006 MacBook w/OSX 8.6?, original iPad, and iPhone 8), even when situated at the same physical location.
When the MBA drops the WiFi the toolbar icon at top drops out. But the Network panel in system preferences recognizes that the WiFi network exists and has a strong signal but is not joined.
- There are no other competing networks in my area.
- I also removed saved networks previously used when away from home.
This random action does not seem to be correlated to sleep mode, long stretches of inactivity, keyboard actions, or anything else i can identify.