Hi my C-Bus gurus... (you all are gur?s for me, as this is my first one on C-Bus) :) It might sound silly for most of you but this issue is driving me crazy. I have a very small wired installation: 2 x voltage free relay with 200mA power supply integrated 1 x 0-10v analogue output 1 x Auxiliary input 1 x Pascal Controller My problem here is: I get to create the project and connect to the network (running), and when I get to the units view, there appear the units I created in the project on the supperior view (Units in Database), but there's no way I can get to appear the units on network, and when I try to "Scan Network" I get a 3051 Error, "Cannot open network. Please check your connections to this network". When I try "Scan new" I get a 22945 Error "Failed to scan new unit. Check network"... Oh! one more thing, I can get to the Piced software and get connected to the PAC and download firmware and code if needed. (Just for info, don't know if relevant... :( ) Issue 2: Some of the installations (there's several of them, all equal) have the C-Bus led ON and some OFF (all thedevices). The Issue #1 happens in both cases. So, I'm begging for your help here as I'm on my own here and it's driving me crazy... I've created a flickr account with some screenshots and picturs about it, you can check it out at : [URL]http://www.flickr.com/photos/34786063@N06/[/URL] Thanks a lot in advance, your forums are great!!! Albert