I have classic unit powered by 'Charge2' with GPS mouse, running latest PAW version. I run SD on an iPad mini 4 IOS 12.3.1. I also have serial connection to a Dynon Skyview.
For a while now, I was getting this message intermittently. Assuming there was a problem with the GPS dongle, I purchased a GPS mouse from PAW but, unfortunately, this did not improve things. I also recently upgraded to latest version but, again, no difference. If anything, the problem has got worse over time and now it is the norm, rather than the exception, to get the 'Connecting to device' message when selecting go fly>use Pilotaware. FWIW, traffic shows fine on the Skyview so, fundamentally, PAW seems to be working ok although I don't think GPS is required for this as it just streams traffic supplied locations?
Any advice appreciated. Also, is it possible to find out which/how many satellites are visible/connected? I have seen this functionality on other GPS devices but can't see if this available from PAW?