1. Click on the wireless symbol in the lower right of the task bar: 
2. All available networks will be shown. Choose the network eduroam and then click on Verbinden.
3. You will be prompted to enter your login credentials.
Important: Enter your username as follows:
benutzername@uni-mainz.de (Users from other institutions participating in eduroam should use their institution’s login credentials accordingly, e.g., mustermann@uni-frankfurt.de)
Password: Your password for your institution’s account.
Make sure to actually enter your → username before the @ symbol, and not, for example, an email alias that differs from it!
4. The message “The server’s identity cannot be verified” appears. You can view the certificate details.
Currently, you will find the following fingerprint in the certificate details:
8b a2 83 c1 16 47 31 e2 4b ea 12 be 0f 47 c7 6b 41 f2 59 39
Then click Connect to establish the connection.