Informationen zur Wlan-Konfiguration (eduroam) an der HGB
The form ...
- to use the eduroam with your HGB-Account, you have to accept the terms of use once
- if you have not yet completed this form, please do so
- put it in the postbox of the Rechenzentrum in the information center (postal service), room 0.33
(see Gebäudeplan)
Fall 2026: Switch to new Root-CA ...
Due to measures taken by Google and Telekom, the HGB is forced to deploy a new root-CA in order to secure eduroam access. To switch to the new
root-CA, HGB-users who are already using eduroam have to remove all previous settings and reinstall eduroam with a new profile.
Remove existing settings ...
Apple
- you have to uninstall old eduroam profile by hand
- Systemeinstellung -> Allgemein -> Geräteverwaltung
- choose eduroam, uninstall by click the minus-sign
Windows, Linux
Nothing to do, the installation program will remove all old settings
Android
To fully remove an eduroam connection from your Android device, you need to delete the saved Wi-Fi network, remove the associated security certificates, and uninstall any setup apps. Simply
forgetting the Wi-Fi network often leaves old login data and certificates stored in the system, which can cause issues during a clean re-installation.
The procedure below may vary depending on your version of Android and your specific device. If the steps below do not apply to your
device (Android version, ...), you can start with the following Google-Search and continue by entering your device type to get
information tailored for your specific situation:
- Forget the Wi-Fi Network
- Open your device's Settings.
- Navigate to Network & internet -> Internet (or Connections -> Wi-Fi)
- Scroll down and select Saved networks.
- Tap and hold the eduroam entry and select Forget (or tap the gear icon next to it and select the trash can icon).
- Delete Certificates from the System Storage:
- Open your Settings.
- Use the search bar at the top and type User credentials or Encryption & credentials.
- Select User credentials (sometimes listed as Manage certificates).
- Look through the list for any entries containing T-TeleSec GlobalRoot Class 2
- Tap the respective certificate and select Remove.
- Uninstall Configuration Apps:
- Look on your home screen or in your app list for apps like geteduroam or eduroam CAT
- Tap and hold the app icon and select Uninstall.
Once these three areas are cleared, the profile is completely wiped from your Android device and you can start a fresh setup.
Get Eduroam ...
Apple
- download new profile HGB-Eduroam-2026
- new profile is available via Systemeinstellung -> Allgemein -> Geräteverwaltung
- double-click eduroam
- use your HGB-Email and your HGB-Password to connect to eduroam
Windows, Linux
- download new profile HGB-Eduroam-2026
- run the downloaded file an follow the instructuions shown
- use your HGB-Email and your HGB-Password to connect to eduroam
Android
- install the geteduroam app, pay attention to choose the correct publisher SURF B.V.
- open the app and search for Hochschule fuer Grafik und Buchkunst
- tick HGB-Eduroam-2026 and connect
- use your HGB-Email and your HGB-Password to connect to eduroam
- save the WLAN if requested
historic information
