Use the Netstat command to view details of your network communication and packet loss during backups.īefore backing up the system, capture the current Segments Sent and Segments Retransmitted as follows. In the example below, this is 0.071 segments retransmitted per second.Īny persistent Average value of 0.1 or more indicates too many dropped packets, and points to a poor network connection.

Check the Average value for Segments Retransmitted/sec.

Let the Performance Monitor run while the backup occurs and starts to indicate problems. The two counters are moved into the Added counters pane.

Select Segments Retransmitted/sec, then click the Add button.

Select Segments Sent/sec, then click the Add button.

In the Performance object box, locate TCPv4, then click the down-arrow next to it.

If not, then select it from the drop-down options.

Make sure that, under Available counters, the option is selected.

Click on the green cross icon to open the Add Counters dialog box.

The real-time Performance Monitor window opens. In the left hand navigation pane, click Performance Monitor.The Performance Monitor window opens on the System Summary page. Right click on the Windows icon in the bottom left hand corner of your screen, and select Run from the pop-up menu.To launch the Performance Monitor user interface, proceed as follows. The Performance Monitor can be used to check for TCP/IP packet losses. The principle remains the same for other versions of Windows. The examples in this article use a desktop PC running Windows 8. However, if large TCP/IP packet losses are found then, a user may need to work with the IT group, computer vendor, network administrator, or Internet service provider (ISP) to resolve the issue. It also includes advice for Reducing the effect of packet losses. These methods are, Performance Monitor and Netstat. This article explains two methods that may be used to determine if a user has large amounts of TCP/IP packet loss due to their network connection. Indications of this include timeouts during backups, extremely long backup times for small amounts of data, and server disconnects.

A poor network connection can result in corrupted data packets which are then automatically retransmitted, thereby slowing down the overall data transfer rate. Occasionally, a computer cannot back up files in full, due to the network connection.

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