The network of hospitals, airports, banks and other large public buildings that handles sensitive personal data of people generally do not want people to use a VPN to prevent forgery of persons. To stop that, they can block one or more protocols on their network. For most devices, you can choose from a number of protocols in the settings of the GOOSE VPN app. It may be possible with a different VPN protocol. You can change this in the settings of our app.
The networks of, for example, the NS or other carriers are often quite slow and may have a limit on the number of active users or limit on how much data traffic can pass over their network at a given moment. This could cause the problems on those networks.