Unexpected loss of connectivity from ESXi host on one or more of its vmkernel network adapters

Products

• VMware vCenter Server

Issue/Introduction

You may experience an unexpected loss of connectivity from ESXi host on one or more of its vmkernel network adapters.

Sometimes the reporter will describe symptoms using words like "lost LACP on a host " or a variety of other words. 

 

Cause

There can be multiple reasons to explain symptoms of loss of connectivity from ESXi host on one or more of its vmkernel network adapters.

Please follow the steps in the Resolution section to investigate further.

Resolution

1) From a Configuration perspective, please check the suggestions in Intermittent network connectivity on ESXi or host disconnect issues

2) From an event perspective, please reference How to investigate unexpected link state changes reported by one or more vmnic in ESXi hosts