Wi-Fi / Wireless Service of TUHH

The Computer Center provides the two wireless networks VPN/WEB and eduroam for research and teaching. The VPN/WEB is primarily used to set up eduroam, which is available at many other university institutions (map). eduroam is a portmanteau of the two words education and roaming.

The instructions

  • Windows
  • Apple
  • Android
  • Linux
  • Other
  • eduroam Configuration Assistant Tool
eduroam CAT QR-Code As an alternative to the instructions on these pages, the eduroam CAT is available.

Information SSID: VPN/WEB SSID: eduroam Downloads Troubleshooting


(with TUHH account)
From the TUHH You have access to the
  • internet and
  • the intranet of the TUHH
Access to the internet only with a VPN
  • if eduroam does not work
Access to
From other universities You have access to the internet over the guest network;
with a VPN-client you get access to the intranet of the TUHH
usually not available


Here's the Wi-Fi presentation of the bridge course:

and a Wi-Fi Booklet.


Here you can find the TUHH Wifi flyer. This includes the Wifi booklet(read, print), as well as indivdual instructions for Android(app, manuel), Apple and eduroamCAT.

Wi-Fi Change

At the turn of the year 2023/24, the certificate chain required for the secure authentication of all TUHH accounts when using eduroam will change. Therefore, a reinstallation/reconfiguration of all clients is necessary so that they recognize the new certificate chain as valid and can successfully connect in the future. The easiest way to do this is to use the installation programs at https://cat.eduroam.org.

The new certificate chain is based on the "DFN-Verein Community Root CA 2022" and the associated root certificate is usually not present on the clients (without anchoring in the browser or operating system) but is installed by the eduroam installation program.

The differentiation of the presented certificate chain depends on the external identity during authentication. When using the external identity "anonymous@tuhh.de", the certificate chain with the root certificate "T-TeleSec GlobalRoot Class 2" is still presented. When using the external identity "eduroam@tuhh.de", the new certificate chain is delivered with the root certificate "DFN-Verein Community Root CA 2022". See also: https://doku.tid.dfn.de/de:dfnpki:dfnpki_root_certs

We will gradually ask all users to switch to the new certificate chain by mail in the coming months.

Certificates with browser and operating system anchoring are now subject to constraints and create risks that could endanger the eduroam service even in the short term. We hope that this change will also increase operational security in the long term.

  Alt: Neu:
Anonyme Identität: anonymous@tuhh.de eduroam@tuhh.de
CA-Zertifikat: T-TeleSec GlobalRoot Class 2 DFN-Verein Community Root CA 2022


Please make sure that your device has the latest patches installed, that you are not using more than one anti-virus program and that no "unblocker" is active.
(Unblocker are programs which can unlock content, that is blocked in one country, but not another.)

If you have questions or problems, please have a look at our help pages first. (Klick here for VPN Help)
With questions, suggestions, reports or further problems please contact our User Service Center (Helpdesk). We respond quickly to e-mails to servicedesk@tuhh.de.

During the semester, the WLAN consultation will take place in E2.048 with Finn Müller and Phillip Vogel. You can find the dates here, as well as in the corridors in the E building.

The WLAN Consultiung will take place on the following dates. Further dates will be announced soon:

  • tuesdays: 10:00am - 1:00pm
  • wednesdays: 1:00pm - 4:00pm
  • thursday: 1:30pm - 4:30pm