"Hi, Seppo,
     I can connect my RFD900+ to RFD900+ with FW 1.9 with no problem as long as the green light on the unit stay solid. If I use config tool, then green light will start blinking, even after I finish with config tool, which make…"

"is there any different between RFD868+ and 900+? my 900+ only talks when I use 1.x FW, don't know how you make MP FW work..hopping to know."

"I had this problem before, you should downgrade FW to 1.x version. The key point is that you have to make both transceivers' green light solid and red light stay flashing, at that stage then you can establish connection. 100% will connect."