License expired

At first, I was searching from forum but don't find solution to my problem.

I have 270 computers with Eset Nod Antivirus 3.0 license which is ending now, I was install new ERAS server and also bought new license "ESS Business" for all computers, I was upgrade and transform all clients in to new ERAS server but after that I get error "License expired".

Can somebody give advice what I need to do, I DO NOT want to make those change manually in each computer.
Hope that there is solution that i can make changes in ERAS or something similar.

Thank you.

 

please tell me you have your clients updating from your local mirror!!

If you do, all you need to do is install your new .LIC file and username/password into the new ERAS. If not - you push a config file to the workstations with the username/password - but with 270 machines, I would highly recommend your clients to be updating from a LOCAL MIRROR - not from ESET's update servers.