Might be a bad cable. Go into your Menu on your Touch and check and see how many IP addresses you have listed
If you only have one in there its only seeing THAT unit. You should have two in there letting you know both units are communicating.
If that doesn't work try switching Ethernet ports on the Touch 9 in case you have a bad port.
Also make sure both units software are up to date before you do any of this
http://www.lowrance.com/en-US/Software-Updates/-Lawren
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