I've heard that a lot of connection problems were resolved by re-booting the partner. Just pull the plug and plug it back in when it's idle, then see if you can connect.
I haven't had connection problems . . . yet
As for the programming discrepancies, I had a problem on an R6 the first time I retrieved it. I just retrieved it again, and it was fine the second time. Modified settings, uploaded to partner, and restarted the system, all worked perfectly.
Don't know why.
I have learned that the only answer to "why" questions is "because!"
;-)
Howard