Error Code: [10:64] Unable to communicate with the remote machine to start the Data Pipe.

The network connection between two host computers is lost.

Symptoms

The network connection between two host computers is lost, and the following error message is returned:

Error Code: [10:64] Description: Unable to communicate with the remote machine [String] to start the Data Pipe. Please check the network connectivity between the local machine and the remote machine and verify this product's Communications Service is running on the remote machine, Error [String].

Causes

The most common causes for this error are as follows:

• Firewall/networking issues
• The services on the named machine are stopped

Resolution

Note: When troubleshooting, do the following:

• Use the Commvault hostname, whether it is FQDN, the short name, or the IP address.
• Troubleshoot from the system reporting the error, not from your personal computer.

Troubleshoot the error as follows:

• Check network connectivity using the Network Test Tool. This is a TCP/IP-based tool for verifying network connectivity between clients in your CommCell environment, such as the CommServe computer, MediaAgents, and other client computers. For more information, see Checking Network Connectivity Using the Network Test Tool.
• Use CVPing or any other network utility to check the network connections on the named system on port 8400/8403. If the connection times out, investigate firewall connections (see Network Routes - Troubleshooting). If it is rejected, investigate services (see Using Process Manager to View and Manage Commvault Services).
• For computers running Windows Server 2012 and more recent releases, use Test-NetConnection in PowerShell to diagnose connections. For more information, see Test-NetConnection.
• If multiple network interfaces are configured on the host computers, set up a data interface pair (DIP) to create an exclusive network route for data transfer between the two host computers. For more information Configuring a Dedicated Backup Network Using Data Interface Pairs.
• The system might not have enough dynamic ports. For more information, see Connectivity Issue Due to System Running Out of Dynamic Ports.
• The components of a CommCell instance might not be communicating with each other using HTTP encapsulation through a VPN tunnel, despite all the network components being configured correctly. For more information, see CommCell Components Not Communicating through VPN.
• Investigate DNS issues.