Were you successful at getting any DS10As registered with OnAlert?
1) If you have an MS10A security motion sensor inside, then you might want to put a bag over its head while you are walking around to the DS10As.
2) If you are using an unmodified CM15A, then you may have an RF reception problem typical of these units. Is you repeater near the CM15A? Is the repeater the type that can repeat a security RF signal?