Welcome to the Roku Community and thanks for posting regarding setting up your additional Roku Smart Home Camera.
You will be able to access multiple Roku Smart Home cameras on different wireless networks. If you are experiencing trying to connect a Roku Smart Home Camera to a wireless issue, are you making sure that the router is broadcasting a 2.4 GHz wireless network?
Please keep us posted what you find out and we will be more than happy to assist you further. We look forward to hearing back from you.
Roku Community Moderator