[GerardvanA]

Thanks Werk_AG
I've got things going ok now on the receive end. (Although this still shows 'connection to wifi' at times)

I'm not sure what I changed, but started with only the system info on, and all other sensors disabled.
That did work now - I must have had that switched off before, although I thought i had it on.

Then I plugged the temp/hum sensor into the I2C socket on the board. I had it in the SHT2X socket as that made most sense to me at the time. The joys of working with a box full of unmarked items and no manual!
So that then showed up in the RX.

The rain gauge gets recognized as well, and I do get a reading on the RX for that.

Now the wind direction and speed, in the debug mode on the TX, I can see the direction changing as I turn the vane. The speed only shows "0".
On the RX I only now and again get a reading of direction while I wiggle or partly plug the RJ-45 into the TX board.
The same if I use my second board.
I'll take a close look at the plug and cable later, as it seems that that is the most likely place where the problem is.

I'll update when I've had time to look at that.
We're getting close to having a functioning system!

Thanks,
Gerard