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I also have a problem with the UCM CBUS with firmware ver 5.235
When the cbus network is powered on the ucm does not connect to the cbus network unless the reset button is pressed on the ucm.
Gone back to firmware 5.216 and the ucm connects automatically when the cbus network is powered.
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That should not be a problem with Cbus 5.235
I think you will find that it should initialise when the cbus wire is first connected or cbus power is turned on but it takes some time, because the SIM module takes a while to wake up and start flashing its leds. But it always happens
Pressing the reset button forces the UCM to look for the Cbus network so it is faster
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If i remember correctly there was a power cut when i was at work an when i returned home power was restored but comfort was not communicating with CBUS the D3 led was lit. Did a CBUS UCM reset and it started communicating.
Have you got ver 5.235 so that i can test again?
CBUS UCM has a ST7 sim
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Does cbus6_010 firmware fix the issues that I have been having?
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Yes it should. It is not officially released yet but should be very soon. Please install and see if it fixes your problem
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How do i down load the firmware as i don\'t have permission to view that part of the forum when logged in
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Tried the new firmware and so far it is working ok.
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Thats good But did you try the effect of a power cut which caused the problem the last time?
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Yes tried disconnecting the power to C-BUS a few times and every time Comfort connected back to C-Bus OK.