Intermittent AirPort issue on MacBook Pro Early 2015 I have an Apple MacBook Pro Early 2015, with AirPort issues.

The problem is extremely complex, but effectively it means I get page time out intermittently.


I've reinstalled macOS from scratch, without backup, twice.
The issue only happens on Wi-Fi.
It happens when on WPA Personal Wi-Fi, but not Enterprise, unsure about Unsecured and WEP.
It happens on 2.4Ghz and 5Ghz on any wireless channel, regardless of interference.
I can still ping local devices, but HTTP requests to the router's config page for example do not work, and internet requests either.
It isn't DNS related as I've tried 3 DNSs and tested with IP addresses
There is no Firewall, or tools like LittleSnitch running
I can see when the issue occours by pinging 8.8.8.8
Other devices on the same internet connection both wired and wireless are unaffected.
The issue is resolved by a reboot.
I've reproduced this at other locations, as well as trying a new Router from my ISP, Virgin Media, and buying a Ubiquiti UniFi AP-AC-LR
We've run Wireless Diagnostics, which Apple Engineering has looked at and not found anything.
They have changed the AirPort card
Tried PRAM and SMC resets, and most the stuff on this thread:
Wifi Keeps Dropping Macbook Pro 13in Retina Early 2015


I'm completely out of ideas, Apple are refusing to replace the Mac, and my work colleague has the identical issue on a newer but same model of MacBook Pro.

Does anyone have any idea how to proceed, I have been waiting for Apple to deal with this and they seem to have no idea, what the issue is.
Resolved by upgrading to macOS Sierra.