Open System Settings, scroll down and select Privacy & Security.
Within the Privacy & Security section, scroll down and select Profiles.
Select the University of Pennsylvania AirPennNet, then click the minus (-) button at the bottom of the profile screen.
Select Remove in the dialog box.
If you need to reconnect to the network, please use the following link: Connecting macOS to AirPennNet.
If you require further assistance after going through this knowledge article, please submit a ticket at support.collegehouses.upenn.edu