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Network becomes unavailable with ntg3 driver on ESXi 6.5 (2150889)

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  • Network becomes unavailable with full passthrough devices
  • If a native ntg3 driver is used on a passthrough Broadcom Gigabit Ethernet Adapter, the network connection will become unavailable.
  • Running below command, you see  ntg3 driver in use.

    # esxcfg-nics -l




To resolve this issue run the ntg3 driver in legacy more or use the tg3 vmklinux as default driver.

Option 1:Run the ntg3 driver in legacy mode

  1. To run the ntg3 driver in legacy mode, run the following command on host:

    # esxcli system module parameters set -m ntg3 -p intrMode=0

  2. Reboot the host.

Option 2:

  1. Use the tg3 vmklinux driver as the default driver, instead of the native ntg3 driver by running below commands:

    esxcli system module set --enabled=false --module=ntg3
    esxcli system module set --enabled=true --module=tg3

  2. Reboot the host.


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