At the campus use the open Wi-Fi network "lrz".
Open https://www.lrz.de/services/netz/wlan/eduroam/ to download the configuration profile.
Select the correct configuration profile and click on it.
You find your iOS-version at "Settings → General → About → Version".
Screenshot: LRZ webpage
Install the configuration profile.
Screenshot: Configuration profile
Enter your user credentials as shown: TUM-ID@eduroam.mwn.de, e.g. gu27cat@eduroam.mwn.de.
You find your TUM ID in TUMonline at "E-mail addresses".
Tip user name
Enter your user name as shown and your device connects automatically, everywhere available, to "eduroam".
Screenshot: Enter user name
Enter your personal password.
Your personal password is your TUMonline password.
Screenshot: Enter password
You get the following view:
Click on "Done" to finally install the configuration profile. Your device connects automatically to the Wi-Fi.
IF NOT: Select "Settings → Wi-Fi → eduroam".
Screenshot: Configuration profile