Ron c

I've recently upgraded my cctv dvr the ultra dome 8 was working fine before but now I get to "checking network type" that goes away when opperatate ptz controls but ptz dose not respond. It was working fine with pelco p at 2400. I've took the dome down and have tryed it on ptz test monitor this worked when first set ptz up few years ago but can't get it to respond now, I did have trouble getting it to respond when first setting up but worked fine when did respond. If anyone has any knowledge on Thease ad domes I'm new to this forum and would be great full of any help