NetworkManager is swapping the connection profiles with USB modem devices.

Solution Verified - Updated -

Issue

  • Due to continuous disconnection and reconnection NetworkManager tries to activate the connection on different devices.
  • When more than one identical USB modems are used, NetworkManager tries to activate using the wrong connection profile.
  • How to bind NetworkManager connection profile with specific modem devices?
  • Binding connection profile with modems SIM ID or Operator ID is not working.

Environment

  • Red Hat Enterprise Linux(RHEL) 7
  • NetworkManager
  • ModemManager
  • USB Modem

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