The e1000 network driver hangs with "Detected Tx Unit Hang" in messages file

Solution Verified - Updated -

Issue

  • The e1000 network driver hangs with "Detected Tx Unit Hang" in messages file when the system experiences high network load.
  • Intermittent issue connecting to server
  • Connection is also timing out whilst attempting to reconnect
  • VMware virtual machine using e1000 network driver hangs with message "Detected Tx Unit Hang/NETDEV WATCHDOG: ethX (e1000): transmit queue Y timed out"

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5
  • Intel network interface with e1000 driver
  • VMware Virtual Machines.

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