I just bought 3 used SR-250 remotes on ebay and need some advice on how to get the system to identify them. All 3 remotes start with a message "Waiting for Network" when batteries are inserted. I have tried to type the MAC addresses into Composer (2.7.2), but it still doesn't identify. When you push the LIST button the remote goes directly to the Settings>Configure page (unlike the one remote I already have that's connected). If I use the 2,4,8,6,#,* command I noticed that two of the remotes are bouncing around from channel to channel. One of the remotes was locked on Channel 11. I was able to get that remote to identify after a couple of tries by pushing the red 4 button. So I suspect the problem is getting the other 2 remotes to lock on Zigbee Channel 11. How can I get the remote to lock on one Zigbee channel?
One unrelated question - two of the remotes are C4-sr250RSK-B and one is C4-SR250B-Z-B. The one i got to work is the RSK. Which is older?