EAPs are not showing up on the new controller after migration

I have a few EAP110s I am trying to migrate from one cloud-hosted SDN controller (V5.3) to an AWS hosted SDN controller (V5.13). When I migrate them to the new controller, I am unable to see them on the new controller. 

I tried to migrate from a PC-hosted SDN controller (V5.14) to the AWS-hosted controller and the devices still dont show. I have opened all required ports on the security group. What can I do? Please I need assistance.