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Acronis connection is blocked by firewalls

Overview

Agents installed on managed machines require access to specific hostnames/IP addresses and ports. Most Acronis components use multiple IP addresses. This article provides the complete list of required ports and hostnames for Acronis Cyber Protect.

You can find exact IPs in your environment using the Port Checker Tool.

Port Requirements

The ports need to be open for outbound connections (except for the statistics server, which requires port 44445 for inbound connection).

Required Hostnames and Ports

Hostname

IP Addresses

Port (TCP)

cloud.acronis.com

45.11.129.61, 45.11.129.62

443

eu2-cloud.acronis.com

45.11.129.31-34

443, 8443, 7770-7800

branded-eu2-cloud.acronis.com

45.11.129.69-70

80, 443, 7771, 7772

agents-eu2-cloud.acronis.com

45.11.129.35-36

443

abgw-fra2-arp1-r01.acronis.com to abgw-fra2-arp1-r06.acronis.com

62.138.220.82-99, 45.11.128.1-120.255

443, 44445

rs-eu2-cloud.acronis.com

45.11.129.31-34

8443

bc-eu2-baas.acronis.com

45.11.129.31-34

8443, 443

cloud-wr-eu2.acronis.com

45.11.129.31-34

5060

arc01.soteriacloud.net

45.11.129.1

44445

Important Notes

Inbound Port Requirement: The statistics server (arc01.soteriacloud.net) requires inbound port 44445 to be open.

Verification Methods

Method 1: Telnet Command

Verify connectivity using the telnet command:

telnet [domain/ip] [port]

Method 2: Port Checker Tool

Use the integrated Connection Verification Tool during installation, or download the Port Checker Tool for post-installation validation.

Method 3: During Installation

The Acronis installer includes an integrated Connection Verification Tool that automatically tests connectivity to required hosts and ports.

Run the Port Checker Tool after configuring firewall rules to ensure all required connections are working properly.