Solution
This behaviour of NI-USRP Configuration Utility is usually caused by multiple USRP connections to the same host computer. In other words - this happens when you connect the USRP using PCIe card and MXI cable and also Ethernet connection at the same time:
- Use only one connection for your USRP device at any given time (Ethernet cable or PCIe card)
- Always turn on USRP first and then start the host computer
- After performing the first two steps - if the behaviour still persists - restart the computer.