IMPORTANT: Disable the IPv6 protocol in the adapter settings of the LAN connection.
If the dormitory has a connection to the University's data network, then simply connect your computer to the network socket and open a web browser.
After entering any URL, the login window will appear. There you log in with your access data. Now you can use the data network.
If no login window appears, proceed as follows:
In the adapter settings, set TCP/IP to "automatic address assignment" (DHCP).