At the start and at regular intervals, Huddle Hub App  (HH App) performs an Automatic Discovery and shows a list of all the available rooms.

Automatic Discovery is limited to the subnet of the PC's own IP address.

For example, if the PC running the HH App has an IP of is will be able to find all Huddle Hub units in the subnet 192.168.1.XXX but NOT in the subnet 192.168.2.XXX 

For these cases, HH App offers a Find Rooms function, that you can use to reach the rooms through the IP address of the HHO unit that hosts them. Click on the lens icon and type the IP address of the Hub you want to reach.

HH App will remember the IP address so you won't need to search for that Hub again.