No worries. There is a reason it is called FAQ - lots of people ask that question :-)

Great that it worked. Thanks for reporting the result :)

Well, it is working with a new nrf with a 10 uf cap soldered on. Can't understand why swapping for a known good one didn't work but puting in a new one did. The annoyances of building your own stuff I suppose. I will use the original one in something else and see if I can persuade it to work.

It's enabled automatically for the w5100 gateway.

I've got a MQTTClientGateway using an Uno with DHT22 sensor attached. It's working for weeks without problems.

@TheoL Hey Theo If you do get to come over some time, let me know and I will show you how my project is going in the test house. Assuming I get some where soon. I have been trying to get an Insteon hub working with openHAB and I have had so many problems, hence my looking for a different approach and looking at MySensors! Just waiting for my pro minis and radio boards to arrive then I can actually get somewhere. (I hope) Might have made a bad decision with my choice of 5v minis with step down regulators for the radio. Wasn't thinking of power for the boards themselves. What do you recommend I do to power 5v boards when there is no power locally?