Troubleshooting

 

Troubleshooting Networking and Communication

Problem

The response to the omnicheck command is:

 

<client_1> cannot connect to <client_2>

 

This means that the packet has been sent, but not received because of

 

the timeout.

Action

Check for and resolve any network problems on the remote host.

 

Checking the TCP/IP setup

 

An important aspect of the TCP/IP configuration process is the setup of a

 

hostname resolution mechanism. Each system in the network must be

 

able to resolve the address of the Cell Manager and all machines with

 

Media Agents and physical media devices. The Cell Manager must be

 

able to resolve the names of all systems in the cell.

Action

Once you have the TCP/IP protocol installed, you can use the ping and

 

ipconfig utilities to verify the TCP/IP configuration. For detailed steps,

 

refer to the online Help index keyword “checking, TCP/IP setup”.

 

HOSTS file resolution problem

Action

If you encounter resolution problems when using the Hosts file, do the

 

following:

 

• On Windows: edit the LMHosts file in the

 

<%SystemRoot%>\System32\drivers\etc directory.

 

• On UNIX: edit the /etc/hosts file.

 

Client Fails with “Connection Reset by Peer”

 

On Windows, default configuration parameters of the TCP/IP protocol

 

may cause connections to break. This can be due to a high network or

 

computer usage, unreliable network, and connections between different

 

operating systems.

 

The connection breaks and the system displays the error: [10054]

 

Connection reset by peer.

Action

You can configure the TCP/IP protocol to use 8 instead of the default 5

 

retransmissions. It is better not to use higher values because each

 

increment doubles the timeout. The setting applies to all network

 

connections, not only to connections used by Data Protector.

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HP B6960-90078 manual Client Fails with Connection Reset by Peer, Checking the TCP/IP setup, Hosts file resolution problem