2 port gateways not working after switch replacement

Our system is 15 years old.  Replaced our console 3 years ago with an Element 2.  The old Linksys switch was slowly dying, so I purchased a Cisco CBS350 to replace it.  Got the config file from tech services, and installed it,  System connects to dimmer rack, no problem.  The old 2 port gateways light up, but they aren't connecting.

Any thoughts?

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