Posted on 02-13-2019 05:00 PM
Has anyone ever encountered their Macs trying to connect to the guest Wi-Fi network after re-installing the OS?
This usually happens during Setup Assistant and the Mac won't go through its DEP PreStage Enrollment unless I switch the network interface to the ethernet dongle.
Posted on 02-13-2019 07:26 PM
It sounds like you're not wiping the drive with Disk Utility before reinstalling?
Posted on 02-13-2019 08:54 PM
I have been seeing this lately as well. Even off I do internet recovery over Ethernet and wipe the drive. Maybe I should change the partition to something other than APFS and then back? Seems like a lot of additional steps though.
Posted on 02-14-2019 02:48 AM
I have a vague recollection from my days as a "Genius" that the last joined network is stored in NVRAM - could this be causing the issue?
Posted on 02-14-2019 09:09 AM
I am definitely wiping the Macs. This issue seems prevalent with 10.14.3.
Posted on 02-14-2019 12:28 PM
I have witnessed this too. It attempts to join our guest network even though our devices "should" be connection to our work SSID.
Posted on 02-14-2019 12:46 PM
+1 for the auto guest network connection. It seems to happen if the ethernet adapter isn't detected immediately after the reboot (even though it remained connected during an erase & install of the OS). It's only happened once or twice, so not worth the time to troubleshoot at my org.
Posted on 02-14-2019 07:02 PM
The following article discusses about blocking a open wireless network.
We follow the above article to push a Configuration Profile with the 'enrollmentComplete' trigger to blacklist open wireless networks.