Currently, the only way to connect UC to a StudioLive mixer is with UC finding the mixer through network discovery.
The discovery method is restrictive for modern IP networks. You need to modernize support and allow manual configuration on where the mixer is located. Due to network security issues, clients do not want wireless routers setup for every AV device added, nor do they want all the ports open.
Ask: Allow manual configuration of the of mixer IP address in UC Surface. Also share more details on ports and protocols that should be available for connectivity.