Network connections are failing to come up after changing the router that is directly connected to the system, but keeping the same IP address on the host

Solution Unverified - Updated -

Issue

  • Connectivity is lost to NetworkManager interfaces when moving a system to a different router, but keeping the same IP address
  • Attempts to bring the connection up with ifup on the system fail after moving a system to a different router, but keeping the same IP address

Environment

  • Red Hat Enterprise Linux 6 (kernel version 2.6.32-358.el6.x86_64)
  • NetworkManager-0.8.1-43.el6
  • Direct connection to a router (ie, no switch between the host and router)

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