Only one of my students is having the “No Internet Connection” error when trying to download to the brain AND the controller. This student is the only one in class with an HP Chromebook. There are several other chromebooks in class that are working fine.
Everything had been updated.
Connects with cable just fine to the controller and the brain.
(content.vexrobotics.com is the site VEXcode queries to check if it has internet access per the post you linked – if I visit that page in a web browser I get a plain white page – no content, but also no errors)
The latest version of VEXcode IQ has adjusted how the internet check works to hopefully resolve some of these issues. If possible, please see if your student can upgrade to the latest version and if the error still persists.
If it does, there may be something going on with that specific Chromebook that is blocking internet access from the administration side of things.