I have four identical cyberdata ip speakers set up and tested that phones can call all four. They were working and then without reason one of the four units decided to not register. I rebooted and checked the web configuration that it makes the other three exactly as can be, the other three are tested and working. I poke the ip speaker unit and gets it static address and restart it and every seems okay. It even registers on the eypgi again but I still can't call it... then after a while on eypgi it lists as "not" registered again...

Anyone know what would be causing this? The ip speaker unit is good and working. It is using a static ip address so its not like it even needs dhcp from the quadro. Do you think if I save the configuration and reseet everything and reload the configuration might help? What would cause something like this?