Support Kies won't connect

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http://androidforums.com – Hi, I got my phone back from Samsung service with Jelly Bean (4.1.2) installed. When I try to connect with kies, it recognizes the phone, but fails to connect. The software times out and keeps attempting the connection. I have uninstalled kies, cleaned the computer registry with CC cleaner and re-installed kies. Still won't work. Any suggestions? (General)