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Hello All,

Yesterday I upgraded my OpenTherm Gateway to 4.2.6 and after that communication stopped and on the board all leds were flashing.
I'm using the OTGW board with lan module(usr Firmware Version：V4017)
Updated using the opentherm monitor upgrade page.

Any tips how to fix this ?

Thanks in advance,

Edwin

From your rather vague problem description, it sounds to me like your gateway may be repeatedly rebooting. Make sure the firmware file you downloaded is not corrupt and then just load the firmware again. The md5 sum of the gateway.hex file is 4a4f44cb6ec47791e49757533e3f55ff.