The order which tagged connections will be selected by the Ranger is determined by the order in which they are listed on the WiFi tab of the Ranger’s control panel. A screenshot of the relevant section of the WiFi tab of the CP is shown below:
The four networks shown are all tagged as preferred. The Ranger will attempt to connect to them in the order shown. The order is easily changed with the arrows on the left side.
One network appears to be listed twice, but, in fact, the two listings pertain to the 2.4 GHz and 5 GHz outputs of the device. As far as the Ranger is concerned, they represent two different WiFi connections.