---
title: "esx.problem.net.firewall.port.hookfailed"
description: "Adding port to firewall failed. There is a configuration issue with the network firewall. Adding a port has failed. See the event description for more detailed information specific to this event. Review firewall and network configuration."
canonical: "https://helpcenter.veeam.com/docs/mp/kb/esx.problem.net.firewall.port.hookfailed.html"
breadcrumb: "Veeam MP for VMware Online Knowledge Base > Event-Based Rules > vSphere Host Network Error > esx.problem.net.firewall.port.hookfailed"
dateModified: "2026-09-10"
---

# esx.problem.net.firewall.port.hookfailed

## Summary

Adding port to firewall failed.

## Causes

There is a configuration issue with the network firewall. Adding a port has failed.

## Resolutions

See the event description for more detailed information specific to this event. Review firewall and network configuration.

## External

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