Knowledge Base

The VMware Knowledge Base provides support solutions, error messages and troubleshooting guides
 
Search the VMware Knowledge Base (KB)   View by Article ID
 

ESXi 6.0 host loses network connectivity randomly (2124669)

Symptoms

After installing or upgrading to ESXi 6.0, the host loses network connectivity randomly and goes to a Non Responding state. 

Note: For additional symptoms and log entries, see the Additional Information section.

Resolution

This issue is resolved in ESXi 6.0 Update 1a, available at VMware Downloads.

Additional Information

You experience these additional symptoms:

  • In the /var/log/vmkernel.log file, there is evidence of transmit timeouts. This is often logged by the NETDEV WATCHDOG service in ESXi. You may see entries similar to:

YYYY-MM-DDT21:35:34.007Z cpu0:33245)WARNING: LinNet: netdev_watchdog:3678: NETDEV WATCHDOG: vmnic0: transmit timed out

YYYY-MM-DDT21:35:34.007Z cpu0:33245)WARNING: at vmkdrivers/src_92/vmklinux_92/vmware/linux_net.c:3707/netdev_watchdog() (inside vmklinux)

Note: The preceding log excerpts are only examples. Date, time, and environmental variables may vary depending on your environment.

  • This issue can impact multiple network adapter types across multiple hardware vendors. The exact logging that occurs during a transmit timeout may vary from card to card.

Keywords

esxi not responding, network connectivity lost,NETDEV WATCHDOG error

See Also

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.

Feedback

  • 114 Ratings

Did this article help you?
This article resolved my issue.
This article did not resolve my issue.
This article helped but additional information was required to resolve my issue.

What can we do to improve this information? (4000 or fewer characters)




Please enter the Captcha code before clicking Submit.
  • 114 Ratings
Actions
KB: