CM19A suddenly quit working with SDK

[Knightrider]

I am using the CM15A on the main computer. It rcv's rf remote signals just fine. I also have several TM751's throughout the home. It is a small home so no transmitter is more than 25ft from any other.

After you have verified that the cm19 isn't working, check to see that the '751's aren't stepping on each other.

[Tuicemen]

I am using the CM15A on the main computer. It rcv's rf remote signals just fine. I also have several TM751's throughout the home. It is a small home so no transmitter is more than 25ft from any other.

After you have verified that the cm19 isn't working, check to see that the '751's aren't stepping on each other.

I missed that several TM751's post That is most likely the issue!
If you have a small home you shouldn't have(need) TM751s in use especialy if they are on the same house codes.
As Knightrider mentioned they are most likely steping on each other!

[Noam]

But you SHOULD be able to control the TM751's (Unit code 1) from the CM19A, no matter what.
Make sure to update to the latest version of AHP, AND the latest SDK, and try again to control first the TM751's, from within AHP, AND using the SDK.