---
title: "HostExtraNetworksEvent"
description: "This event records the fact that a host has extra networks not used by other hosts for HA communication. Consider using HA advanced option das.allowNetwork to control network usage."
canonical: "https://helpcenter.veeam.com/docs/mp/kb/hostextranetworksevent.html"
breadcrumb: "Veeam MP for VMware Online Knowledge Base > Event-Based Rules > vSphere Host Network Error > HostExtraNetworksEvent"
dateModified: "2026-09-10"
---

# HostExtraNetworksEvent

## Summary

This event records the fact that a host has extra networks not used by other hosts for HA communication. Consider using HA advanced option das.allowNetwork to control network usage.

## Causes

There is an issue with vSphere High Availability configuration for this host. Review the event description for detail on the cause.

## Resolutions

Review VMware online documents such as [Troubleshooting VMware High Availability](https://knowledge.broadcom.com/external/article/318936/troubleshooting-vmware-high-availability.html) and the [vSphere Troubleshooting Guide](https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-DE119813-63A7-4B68-924D-1ED95F6EFFD7.html) to resolve HA issues.

## External

See the [vSphere Availability Guide](https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/vsphere-availability.html) for more information.