u can download the client by logging into your TU Braunschweig user account on the following website: https://vpngate.tu-braunschweig.de/+CSCOE+/logon.html#form_title_text
https://vpngate.tu-braunschweig.de/+CSCOE+/logon.html#form_title_text VPN Downloa... .>.msi“ on the following homepage: https://www.tu-braunschweig.de/it/downloads/software)
Finish the installation