If the computer only has a wifi connection you should use a recommended wifi router for Internet connection.
For StudNet accounts with move-in date on the renting contract BEFORE February 2022 or in some shared apartments you need to set up an Internet login on the connected device to be able to use the Internet.
For this purpose a L2TP VPN connection needs to be set up on the Apple mac, if the computer is directly connected by cable to the network socket in the room:
Most accounts with move-in date on the renting contract AFTER January 2022 do however use the IPoE system for which there is no need to configure a separate Internet login.
Information on which system is in use for your StudNet account can be found in the registration e-mail (Startup) or by login on https://netstat.stw-bonn.de.