I have a GS 911 which I purchased for my 2007 R1200GS. I also run a 1995 R1100RS mainly in winter. I purchased the three pin adapter so that I could read codes on the R1100RS. When I received the adapter 18 months ago I immediately tried it out and all went well. This week I had an engine failure on the way to work. I recovered the the bike in a trailer! At home I connected the three pin adaptor and the GS 911 to the R1100RS and I keep getting a" fail to establish receive link ACK". Yes the switch on the adapter was at "O", ignition was on, and the three pin connector was connected. Does any one have any ideas?