Yes, this problem is famous and happens sometimes with Windows and Linux.
Notable that on my latest Windows 10 and Orange PI PC with the Ubuntu Vivid Lxde there is no this problem.
This problem exists because of incorrect setting metrics for the connections.
The system is not understending which of them primary and secondary.
Please use Google for searching a solution.
I can saggest to you to try also openHPSDR programm for Android devices by John Melton. He can present also a new soft under RPI on the nearest Fridrichshaffen.