Since there are no replies yet, I'll offer what I can but I have no experince with IGuidance. I use CF which comes with "Navigator". (Navigator is a POS BTW)
I had continual connection problems using CF & Navigator even with GPS gate.
I bought GMPC and have never had a single connection issue since using the identical hardware.
So my point is that it appears that connection issues can definitely be tied to software and not necessarily hardware. I would suggest it is likely an Iguidance issue.