I am not sure about mini, but my R2 has only a low - 50mA - limit for the built-in bias-T max current.
Try to use an external bias-T circuit and a low-noise power source for feeding the amplifier. (Easy to build one with some of the 7805 stabilizer IC and a few capacitors. 7805 has its noise in the 10-50 micro-Volt range)
Without examining the available logs, my guess is that mini’s bias circuit is overloaded and it is switching off - as if it is shorted. Restarting the kit may reset the restriction for some seconds - then it gets off again. Ofc, I can not be 100% sure…
One more thing: Check: your detected planes, on “your IP”:8504 (eg. 192.168.2.106:8504)
comes into my mind: Is user mode driver installed?
prereq:
sudo apt-get install build-essential cmake libusb-1.0-0-dev pkg-config
then
wget https://github.com/airspy/airspyone_host/archive/master.zip
unzip master.zip
cd airspyone_host-master
mkdir build
cd build
cmake ../ -DINSTALL_UDEV_RULES=ON
make
sudo make install
sudo ldconfig
clean temp files
cd airspyone_host-master/build
rm -rf *