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Maintenance WLAN Service SSID eduroam and tunet

The certificates of the authentication servers and for the 802.1x WLAN service have to be renewed. This replacement will take place on Wednesday, February 17, 2021 in a maintenance window from 4:00 to 6:00 p.m.

In the course of establishing a connection to the WLAN service, your wireless client checks the certificates of these Radius servers, depending on the local configuration. These certificates will now change. To continue establishing an encrypted WLAN connection (SSID "tunet" or SSID "eduroam"), please view the certificates (if supported by your device) when connecting and confirm them on your client.

Information about the certificates used (names and fingerprints) can be found on our homepage at, opens an external URL in a new window

If you have problems establishing a connection, it may be advisable to completely delete your WLAN profile for "eduroam" or "tunet" on the client and reinstall it. WLAN installation instructions can be found at, opens an external URL in a new window

We are trying to keep the maintenance work as short as possible.

If you still suspect a problem after completing the performed maintenance work, also check the TUnet status and currently listed messages on Home. If the occasion arises, send an email to or contact us at 58801 42002.