Switching ISP provider

[Ssullivan]

I recently switched from Xfinity to Verizon. I have the Ruckus (ICX 7150-C12P) with three WiFi expanders. The Verizon tech said there is a connection coming from the Verizon modem but when I plug it into the ruckus, I get no signal. Using the same port, when I plug back the Xfinity, WiFi connection is restored through the ruckus. Is there any configuration that needs to occur? Should I be using the same Ethernet port for either ISP provider? Any help would be great.