---
title: "esx.problem.vmfs.heartbeat.timedout"
description: "Host connectivity to the volume degraded as the VMFS heartbeat failed. Host was unable to renew its heartbeat for 16 seconds or longer. For more information on the problem and resolution steps, see this VMware KB article."
canonical: "https://helpcenter.veeam.com/docs/mp/kb/esx.problem.vmfs.heartbeat.timedout.html"
breadcrumb: "Veeam MP for VMware Online Knowledge Base > Event-Based Rules > vSphere Host Storage Warning > esx.problem.vmfs.heartbeat.timedout"
dateModified: "2026-09-10"
---

# esx.problem.vmfs.heartbeat.timedout

## Summary

Host connectivity to the volume degraded as the VMFS heartbeat failed.

## Causes

Host was unable to renew its heartbeat for 16 seconds or longer.

## Resolutions

For more information on the problem and resolution steps, see this [VMware KB article](https://kb.vmware.com/s/article/1009557).

## External

Refer to the [VMware Online Documentation](https://techdocs.broadcom.com/), especially 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), for more information on vCenter event messages and possible solutions.