Update: I bought a new battery (did not want to change doing something bad to a working 9600). As of right now it looks like the new battery has corrected the problem. The previous battery was just about a year old and the 9600 had the connection problem for a while. I don't know if it was the battery brand or just a bad battery, but I bought a different brand. I will update if my initial several days of testing prove different.

Thanks alpha and buzz.

Just as a side note; the "bad" battery would keep a charge just like the others, but it must have had some issue with its ability to deliver the needed power or something.

Update: 03/08/2018
Well my first impressions were not correct, the suspect 9600 still does not connect as quickly or stay connected as well as the other 4 9600s.

Still looking for a reason. Any new ideas?