---
title: "DasHostIsolatedEvent"
description: "A host has been isolated from the network in a HA cluster. Since an isolated host cannot be distinguished from a failed host except by the isolated host itself, this event is logged when the isolated host regains network connectivity."
canonical: "https://helpcenter.veeam.com/docs/mp/kb/dashostisolatedevent.html"
breadcrumb: "Veeam MP for VMware Online Knowledge Base > Event-Based Rules > vSphere Cluster Warning > DasHostIsolatedEvent"
dateModified: "2026-09-10"
---

# DasHostIsolatedEvent

## Summary

A host has been isolated from the network in a HA cluster. Since an isolated host cannot be distinguished from a failed host except by the isolated host itself, this event is logged when the isolated host regains network connectivity.

## Causes

Host can no longer communicate with other hosts in the cluster. The host failed to ping its isolation addresses.

## Resolutions

Check host network connectivity and try to reconfigure HA.

::: note

If you ensure that your network infrastructure is sufficiently redundant and that at least one network path is available at all times, host network isolation should be a rare occurrence.

:::

See the [vSphere Availability Guide](https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.avail.doc/GUID-63F459B7-8884-4818-8872-C9753B2E0215.html) for more information.

## External

Refer to the [VMware Online Documentation](https://techdocs.broadcom.com/) for more information.