The EAP110 don't need permanent contact with the EAP Controller. After you configure the EAPs successfully the EAPs won't reset by itself. So for the problem, you should check whether you configure...

Only the EAP220_V1_150105 and EAP120_V1_141107 firmware support the cluster mode, could you doubt check the firmware of the EAP220? If the EAP120 are work in cluster mode, then the first one power on...

The DHCP subnet is 96 which mean equipment only in the same subnet(96) could communicate with each other in the LAN. If you want to change it to 47.2, then you also need to change the DHCP LAN subnet...

Do your EAP and computer are in the same subnet? And do you have DHCP server which could allocate IP for EAP&computer like carp0101 said? If EAP and computer are in the different subnet, you can...

It is a bug. I have met this before. So you would better contact technical support through Email. Web: http://www.tp-link.com/en/support-contact.html or ticket system: http://ticket.tp-link.com/.

Could you use the Controller to check whether you have enabled Scheduler like the picture show. Maybe it is the schedule that let the 2.4GHz radio off.