[CA] [CA11] AIS Lost Connection (C90W C12OW C140W)

[Stoomy]

I've reconnected the Icom M506 to the N2k backbone and done a bit more testing.

Even in Boston Harbor where there are always at least 9 AIS contacts, I still get the "AIS Lost connection" Error message.

I only have one source of GPS data and that is the internal GPS on the C140W.

I don't believe either of the two explanations is accurate.

here is an exhaustive list of my electronics:

Raymarine C140W MFD (Connected to N2K backbone via SeaTalkNG adapter)
Raymarine Digital Radar (connected via SeaTalk HS (Ethernet switch))
Raymarine C90W MFD (usually off. When on: slave mode with internal GPS disabled)
Icom M506 VHF with AIS receiver and N2k output.
Maretrom DSM-150 (x2)
Maretron WSO100 (Wind direction/speed/etc..)
Maretron DST110 (Depth/Speed/Temp Triducer)