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NICs using ntg3 driver may experience loss of connectivity (2150728)

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  • NICs using ntg3 driver may experience loss of connectivity. 
  • Unable to restore Network connectivity until ESXi host is rebooted. 
  • The devices affected are Broadcom NetXtreme I 5717, 5718, 5719, 5720, 5725 and 5727 Ethernet adapters.


There are two causes for this issue,
  • Repeated reset of the device, which may have triggered by prolonged high network traffic.
  • Sending certain malformed TSO packet coming from VMs such as F5 virtual appliances.


This is a known issue with ntg3 driver version, bundled in ESXi 6.5 GA.

To fix this issue upgrade to latest ntg3 driver version or newer To download latest version of ntg3 see VMware Download Center

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