The last wireless sensor will not connect in MVN Studio 4. Every time you try to connect, a different sensor is not connecting to MVN Studio.
The Awinda receiver (either the Awinda station or the Awinda dongle) is probably connected to a USB3.0 port in your computer. The driver are not optimized for the use of USB3.0. Please connect the Awinda receiver to a USB2.0 port.
You can recognize a USB3.0 port by the blue bar inside of the port (see picture).