1. Because users do not encounter network disconnections when they access Web pages, the route is normal. Execute a ping command for a long time to check for packet loss. No packet is lost. The fault is not caused by a link problem.
2. QQ network disconnections occur at a fixed frequency, so the cause may be a short session aging time. Check the QQ session aging time. The value is 30. Change the value to 120. Observe the network for three hours, no QQ network disconnection occurs.