When ClickShare Conference (CX-20, CX-30 and CX-50) and ClickShare Present Base Units (C-5 and C-10) are network connected, the smartphone/tablet or MacBook (Pro/Air) will not discover the Base Units when they are located in a different VLAN.

For ClickShare Conference and ClickShare Present and this is resolved by way of supporting Bluetooth beacon, from version 2.8 onwards. More information on Bluetooth beacons can be found in What is Bluetooth Beacon and how does it work?

Some more technical information with respect to AirPlay:

AirPlay requires the use of the Bonjour® protocol for network discovery. This protocol is based on multicast DNS to make the ClickShare Base Unit discoverable within your network and requires opening UDP port 5353.

AirPlay can also use presence detection based on Bluetooth. When Base Units are discovered through Bluetooth, the AirPlay-enabled device will check if it can connect to the Base Unit. If Bluetooth is not used, there will be no way to detect Base Units in different VLAN's because the Bonjour® protocol cannot be routed.

For more than 10 Base Units in your Enterprise network, it is recommended to use a structured meeting room name, e.g. “Building A – Floor 2 – Meeting Room Rome”. This will allow users to quickly find the correct meeting room in a long list. Note that the Bluetooth beacon will only contain the wired IP if connected.

Connection to the Base Unit will happen through TCP ports 4100-4200; 7000; 7100; 47000 and UDP ports 4100-4200; 5353.