4 Replies Latest reply on Mar 12, 2018 10:04 PM by Badlands

    SQL Window hangs after DB Connection and SQL Developer freezes


      Windows 7 Enterprise Service Pack 1

      SQL Developer

      Oracle 12c


      My SQL Developer database connections suddenly stopped working.  I checked with Amazon RDS support and everything appears to be working correctly from their perspective.  I right click on the  DB connection an choose Properties, then click on the Test button and it displays Success.  But if I then click on the Connect button a progress window pops up for a few seconds and the entire SQL Developer window freezes. 


      I was experiencing this behavior on SQL Developer version 4.2, so I installed version 17.1.  The very first DB connection worked, but then I began experiencing the same thing on all subsequent DB connection attempts.  Any help would be greatly appreciated.