Frequently Asked Question

Common Issues:

• Third-party firewall causing conflicts with ESET products.
• Networked computers behind a firewall affecting ESET functionality.
• Home users not receiving ESET service emails.

Is This Guide For You?

This guide is for users of the following ESET Home products:

• ESET Smart Security Premium
• ESET Internet Security
• ESET NOD32 Antivirus

Solutions for Home Product Users:

1. Activation Issues: If your router or hardware firewall is causing issues with ESET product activation, contact your internet service provider. Provide them with the necessary Hostname, IP address, and Port number to add to the firewall or router settings.
2. Update Errors: Use the Troubleshooting wizard within the ESET software to unblock applications or add exceptions. If issues persist, contact your ISP.
3. For Networked Home Users: If you're a home user on a school or business network, consult your network administrator.

Important Ports to Open:

• TCP/UDP Port 53535: For ESET LiveGrid®, Antispam, and Web Control functionalities.
• HTTP Port 80 & HTTPS Port 443: Standard internet communication.

Required Hosts for ESET Components:

ESET products communicate with various online resources. The following must be made accessible:

• Downloading detection engines and module updates
• ESET Secure Authentication Provisioning Server
• ESET LiveGrid®
• Advanced Machine Learning
• Anonymous statistics
• And many more...

Hostname/IP Address Table for Detection Engine Updates

Specific Update Servers by Region

• Europe: eu-update.eset.com
• US: us-update.eset.com