The WiFi infrastructure in Göttingen has been extensively rebuilt. The well-known former GoeMobile is replaced by GuestOnCampus that offers some interesting new features. This includes, in particular, the simplified creation of WiFi accounts for individual guests via the sponsoring function or for a larger number of e.g. conference participants who do not have an eduroam account via the event voucher function. Further information can be found in two articles in the GWDG News 3/2017 and 4/2017.