Why SSH connections hang/drop with "Network error: Software caused connection abort" putty error mesage ?

Solution Verified - Updated -

Issue

  • System connection breaks after sometime.
  • ssh hang with "Network error: Software caused connection abort" error.
  • putty disconnection with "Network error: Software caused connection abort" error.

Environment

  • Red Hat Enterprise Linux (All Versions).
  • Putty
  • ssh

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