Did a little more looking, and the original Ethernet switch was the AS ETH 5PS. The new AS ETH 5PXG was introduced some time in 2014 around the time the Onix was introduced to support the increased data on the network. A lot of people had intermittent problems with the new stuff and the old 5 port switch after that.
According to Humminbird Greg at the time the new switch has better capability handling multicast subscriptions ...
Rickie does a great support job, but sure miss Greg on the forums.
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Looking for the one that makes it all worthwhile.