Commercial support needed

Hello, I work for a K12 school district. We have a functional freeradius setup providing authentication to our Aruba wireless network. Unfortunately, the technician who set up and managed both the wireless network and radius left suddenly a few weeks ago with no notice and no knowledge transfer. I am looking for an expert to help us overcome an immediate need to enable 2 additional wireless controllers to communicate with our radius servers. Any advice or assistance would be greatly appreciated! Sincerely, Dave Baird Network Admin Olympia School District