Xibo player on windows 10 cannot connect to CMS on same local network

Hi I have deployed CMS on MacBook assigned on same local network as windows machine running CMS player. After capturing address and identifies machine says connecting and fails - please help

Is the CMS available over the local network?
ie if you open web browser on the Windows PC, can you access the CMS there? (presumably via IP)

Is it docker based installation? What version?