47145: Acronis Cloud Connection Verification Tool

Last update: 25-08-2022

If you are using Acronis Backup 12.5, Acronis Cyber Protect 15 or Acronis Backup Cloud, please refer to this article.



Acronis Cloud Connection Verification Tool is designed as a bundle to replace the following tools:

  • nslookup
  • telnet
  • ping

Supported Operating Systems

All Windows starting from Windows XP (Windows 2000 is not supported)

Usage in Windows

1. Determine which cloud storage you are using:
1.1 Login to your Acronis Account.
1.2 If you use Acronis True Image - click Dashboard

If you use Acronis Backup - click this link

1.3 You will be redirected to Acronis Web Restore. You need only the URL where you were redirected. In the example the URL is cloud-wr-eu1.acronis.com. EU1 stands for the Data Center.

2 Download respective tool from this KB.

3. Run it.

4. The tool will:
- check if DNS works correctly to resolve our hosts;
- check if required ports are opened;
- send 50 packets to test network stability;
- generate a report in a text file with a report that contains the above information.


1. Name resolution fails:

2. Ports are closed:

3. DNS server resolves our DC hostname to wrong IP address:

As you can see on the picture above Name Resolution (DNS lookup) succeeded. However, after that you see that port verification failed. This can be caused by DNS server resolving our hostname to the wrong IP address. You can verify if name resolution is correct by running the tool on a different machine. 

4. Connection is not stable but ports are opened:

As you can see on the picture connection on port 44445 succeed for all FES servers except one. The problem can be the following:

- Port 44445 to that specific IP is really closed.
- Connection is not stable and the test connection failed. You should rerun the tool and see if connection works again.
- The server is currently on maintenance and connection will fail. You can verify it by running the tool on another machine or reruning it.

5. Connection is unstable.

If during the packet sending procedure a packet will be lost you will see the following warning in yellow:

Packet loss was detected. Connection is not 100% stable.

Usage in Linux

This is the same tool but for Linux OS. You can find attached 32 and 64 bit versions of the same tool. Normally you can run 32bit application on 64bit system but you can need to install noarch libraries.

Usage: obchecker [OPTIONS]


* [-s] - destination ip address or hostname
* [-z] - set zone [EU1, US1, or US2]
* [-p] - destination port [1-65535], if [-s] was not set, www.google.com is used instead
* [-t] - set port check timeout [default is 10secs]
* [-n] - set maximum number of ping tries [default is 5 times]
* [-h] - show help
* [-v] - show version information

This tool can also check destinations and ports for availability, may be usable in Acronis bootable media

 - obchecker
 - obchecker -z us2
 - obchecker -p 80
 - obchecker -s -p 55
 - obchecker -s -p 8080 -t 15 -n 50