Apple Remote Desktop and 2 different networks

Question

Hello everyone,
The issue is as follows... I manage an iMac lab with about 24 Macs and I've used ARD to control/manage the Macs.  Recently we installed cable wifi, but did not want to flood the signal with one router and 24 computers so i got 2 cisco routers to split the signal for 12 iMacs per router, and since then i have not been able to control them all at once because i can only be in one network at a time.  Before it was easier because they were all wired, but it was slow as helllll... what can i do? i mean i did try to have them all on the same router, but that didnt go well at all as you all can imagine. One hose and 24 people trying to get a gallon of water at once, (not happening).  Please help, Thanks a million.
BTW the routers are Cisco EA6500

Answer 1

So are you saying you have two separate IPs that host the networks? and are split or?
Because you should be able to enter the lowest Network address and the highest network address of your networks and they all should show up.
we have 200 Macs per subnet here and using Scanner > Network Range and using 169.xxx.xxx.xxx - 255.xxx.xxx.xxx as our range they all appear properly and can add them to the list.
you may have additional firewalls in place on those routers, but generally that method will allow it to scan and see all ports and addresses regardless of subnet, location, etc.