I have a BCM 450 rel 6 that has 4 DSM 1 DTI 1 4X16 1 ASM 8 plus I have a CEC card installed there are 130 plus digital sets working and 16 IP sets and we have 22 keycoded ip clients. If we try to connect 1 IP set it says en-failed DN I can connect a Digital set no problem. Thanks guys in advance hope you can help.