using AG with more than one server mac

[JDL198]

im trying to use 2 or 3 spare mac laptops to support my logic pro DAW

set up as follows

AG on 2023 imac running on AG server with logic as DAW on osx sonoma

connected to 2o13 MBP (big Sur OSX) by usb c ethernet -unique ip address/subnet 255,255,00/router 192.168.0.1

connected to 2009 Imac (high sierra) by usb c ethernet -unique ip address/subnet 255,255,00/router 192.168.0.1

i can connect no problem to main daw server AG and server 1 AG

but the only way to connect to server 2 AG is turn off server 1 - if i leave it on, i can see server 2 in the AG plugin server list but it refuses to connect even tho the network settings are all green lit

i believe the point of AG is the ability to use multiple servers off the main DAW computer but it will at least on my mac only recognise 1 external server at a time

what do i need to do to run more than 1 external server as i have 3 spare laptops

help appreciated