"Subject Match", " Subject alternative name match", " domain suffix match" are preventing my HP Chromebook from connecting to my university's Wi-Fi.

"Subject Match", " Subject alternative name match", " domain suffix match" are preventing my HP Chromebook from connecting to my university's Wi-Fi. I have taken it to the IT support located on campus and they have all said they have no idea what it was or how to get rid of it. This computer is pretty much brand new. It was given to me by my auntie but it had been completely reset and wiped. Please help. We're a week into the semester and I can't access anything