Ok, managed to find my copy of the Jadahl build of Domoticz I was using before my upgrade attempt, so uninstalled the community version, installed this version, and extracted the usb_serial drivers from that. Then uninstalled this version (the community version won't install over the Jadahl version ...

Ok, it appears it's down to the Synology NAS not having the matching serial drivers (and the community Domoticz package doesn't install them), so not an RFLink issue It appears the original Jahald domoticz build I used did contain the right drivers, but when I updated to the 'community' Domoticz ins...

I've had an RFLink arduino mega connected to my DS216j for several years, using Domoticz I've recently updated both the DSM on the Synology NAS (DSM 6.2.4-25556 Update 7) and Domoticz (2020.2-10), and the connection to RFLink is now not working I've run RFLink loader with the rflink device on my pc,...