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[smontescu]

I have a question that I hope you all can help with.
My basic setup is as follows:
- lamp/appliance modules
- socket rockets
- remote control (8in1)
- CM11 interface
- TM13 transceiver
- LCD display with touch panel as keyboard.
All system is being controlled by an AVR Atmega128 microcontroller (CPU) under my own programme.
Want I want:
- to generate commands (ON/OFF/DIM...) with touch panel
- to generate commands (ON/OFF/DIM...) with remote control
- to know in every moment system status for the purpose of bringing up to date the display icons.
When the commands comes from CPU is esay to update display.
The problems come when I modify system status with remote control.
In this very moment I expect CM11 to pool CPU  with 0x5A and treat this situation.
Often this 0x5A don't come and as result I don't know in every moment system status.
Hho is guilty TM13, CM11 or me

[Brian H]

The signal may not be getting back to the CM11 on the powerline. Do you have any phase coupling or repeaters between the homes phases?
You may want as a test to move the TM13 to a different circuit and see if the CM11 receives the signals better.
Also try unplugging electronic gadgets to see if line noise or signal absorption is a problem.
Have you browse the troubleshooting tips here? They are a big help.
Below is a link to Jeffs great information source also good reading.
http://jvde.us/x10_troubleshooting.htm