I killed many hours over two days and it still does not sync with my Garmin 741xs. The 741 searches for it but does not find it. Yes, I do have the DT=06 WiFi moduale and the blue light works and the Daisy 2+ appears at the com port and the green lights flash at 5 seconds. The computer sees it but the 741 does not. I give up!! The 741 does sync with the computer.
I'm sorry to hear about your struggles. Please don't hesitate to send me an email if you need help resolving your issue (firstname.lastname@example.org). Keep in mind, that the chartplotter will only see the AIS Receiver if there are AIS targets around you. Otherwise the receiver will stay silent.
Best Regards, Adrian