First thing I'd try is changing Java versions...some people have had connection problems with both 1.6.0_01 & _02. Use this one instead, take the JRE offline installer & remove any existing Java versions before you install this one.
Archive: Download Java 2 Platform Standard Edition (J2SE) 5.0 Update 11

If that's no help, can you give us all this info (sorry for any repeat questions)?
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