Thank you for contacting Lennar Home Community.
Hope you are doing well!!!
Thank you for the detailed information you shared,
From the case description, I could understand that you have a RUCKUS Lennar home setup connected to a new ISP (Internet Service Provider) and want to know if it’s working.
Yes, you need Router or Modem-Router combo from your ISP connected to the ICX-7150-C12P switch. And from the 12 Switch ports, you could connect your devices such as Access Points, smart devices, wired ethernet cables for your laptop/PC, etc.,
Please refer to the short guide link below about how to connect the devices:
Most common Setups for Lennar homes users:
Please let me know if you have any queries in this regard.
Thank you again for your patience.
Lennar Home Community.