[Technical Support Department] Technical Team C (Li yuanzhe): The network maintenance task is successfully completed.

Date: 2011.9.29

Maintenance Personnel: Li yuanzhe, Technical Department

Fault description: The network connection is unstable, the network speed is slow, and Ping packet loss is serious.

System: win7 flagship

Tools/commands used: Windows cleanup assistant, doscommand (Ping, tracert, SFC)

Process: The group receives a temporary task. After hearing the fault description, it first considers the fault to be caused by aging of the network cable/route, and then listens to the further description (the network is normal a few days ago). Then, it decides to solve the problem from the software aspect, first, use the Windows cleanup assistant to check for one virus and one plug-in. After pinging the agent again, the network is still abnormal. Then, tracert www.baidu.com finds that the route information is normal. Continue to SFC/scannow and restart the agent to solve the problem.

Summary:

1. The male and female dormitories are managed by different vrouters. They are not routed to large vswitches.

2. The most likely cause of this fault is the damage caused by viruses and Trojans. The problem can be solved after the virus is fixed.

3. Some viruses and Trojans are targeted at mainstream anti-virus software. Therefore, even if the virus is installed, pay attention to various system exceptions.

Technical Department, Li yuanzhe

2011.9.30