Open Settings and select Connectivity > Destinations > Options > Default connection.

Destinations contain several access points that can be used to connect to them.

To select a default connection to which connections from your phone are automatically made, select one of the destinations defined in your phone. If you select Always ask, you are prompted for the destination or access point every time the application connects to the network. If you select Ask once, the first destination or access point you select will be used for all connections during the session.