With all the computers set up on the same network, you should be able to see each under the ‘Shared’ list in the Finder sidebar.
If you don’t, go to Go > Connect to Server and type the server address for the computer you want to connect to:
IP addresses for the red server rack:
DEV1
smb://192.168.1.168
DEV2
smb://192.168.1.159
DEV3
smb://192.168.1.158
For the orange server rack:
DEV1
DEV2
DEV3
Login and password on post-it in monitor Zarges box