You are not alone a lot of people at GRCon17 were having this problem. I managed to get it to work by installing the latest gr-iio from source.
You can also use the FMCOMMS source/sink and set the ip address to 192.168.2.1 However Analog have changed the interface from the Radio old version needed short to float conversion followed by float to complex
The new version comes out as complex float so no change is required.
My description is probably as clear as mud but it does work!
