There is a function called transfer system that enables you to move a device from one server to the other without redeploying the agent. You just need to cross register the servers to exchange systems.
Just lookup transfer system in the epo guide. As per ePO guide this is the process.
1 Export the agent-server secure communication (ASSC) keys — From the old McAfee ePO server, use Menu | Server Settings | Security Keys.
2 Import the ASSC keys — From the new McAfee ePO server, use Menu | Server Settings | Security Keys.
3 Register the secondary McAfee ePO server — From the old McAfee ePO server, use Menu |Configuration | Registered Servers.
4 Move systems to the secondary McAfee ePO server — From the old McAfee ePO server, useMenu | System Tree | Systems tab and Actions | Agent | Transfer Systems.
5 Confirm the systems arrived — From the new McAfee ePO server, use Menu | System Tree | Systems tab
6 Confirm the systems moved — From the old McAfee ePO server, use Menu | System Tree | Systems tab
I dont really want to connect the old and new systems, is there any other way? Will the push agents see the agents as new agents as they are already managed by the old server?
Pushing the agent over will send out the information from the new server and have the device connect to the new server. That is how it is supposed to work. So deploy agent with appropriate credential would do it ( you need domain admin equivalent)
With the transfer you are explicitly telling your systems to connect to new one without installing a new agent, you are leveraging the working agent communications.
Ill give it a go, I'm sure I tested ticking auto deploy agents on the sync of the container for our servers, we had around 30 left to do, and I checked the next day and nothing new had been deployed. Does this push agent run when the AD sync runs? We had that running every 15 minutes.
I think it only pushes the agent when the system is added to the system tree, so you would have to delete them before you resync.
Ah I see, yes I have firstly synced the new server to pull in all the unmanaged machines, so you would recommend deleting the machines from the system tree first, then allowing this to sync again and when this happens it will auto push.
That's what I would try.