Hello, I'm experimenting with a cbus set up on my work bench before commissioning it into the house. Currently I have 2 PCI (5500PC) correctly found when scanning the network in cBus tool kit. My (2nd hand) wireless gateway isn't found. Switching over to the diagnostics utility, I can [B]intermittently[/B] identify unit and 'see' the nearside of the gateway on address 255 12/11/13 00:28:16 86FF0100890147415445574C534E8B<CR> "______GATEWLSN_" 12/11/13 00:28:16 = Local Network, Source Unit 255, System Message But other times I get a blank response. Inst MMI just 'see's the two PCIs on 001 and 002. I've tried swapping leads etc. The clock and network burden appear to be ok. Am I missing something obvious in how to set this up? Thanks in advance, Alan.