Hi Jennifer Adams1,
Welcome to Microsoft Community
I would like to ask if the network you are using requires dial-up Internet access and requires a dedicated username and password to verify identity, or can it be used directly by connecting to a PC with a network cable?
Usually school networks fall into the former category, and they even require dedicated clients to log in to the Internet.
Since the information on this is incorrect, I wanted to confirm something more with you.
Additionally, if possible, please send us screenshots of your inability to verify your account information and your inability to connect to the Internet. This helps a lot with the problem.
Thank you for your patience and understanding!
Best regards
Manson | Microsoft Community Support Specialist