To connect LUCI LIVE with LUCI STUDIO is best be done with the RTP protocol.
This can be tested first by connecting both to the same internal LAN or WIFI network, so both have the same IP address range. See “Both on the internal network” for instructions.
When this works as expected follow the “UDP port forwarding for RTP incoming stream” and the “LUCI STUDIO on internal network and LUCI LIVE on the public internet” instructions.