Reasons for website loss after reconstruction and Solutions

The user said that several websites may disappear after using the user reconstruction function. After checking one of the servers, the staff found the reasons as follows:

A large number of sites on this server use the bandwidth restriction function (that is, to limit the maximum bandwidth of a Website per second). However, QoS service is not installed in the NIC, as a result, IIS considers this to be a wrong website and will lose it. The solution to this problem is to first install QoS and then restore the website:

For the bandwidth limit function of each Vm, the premise is that the selected QoS is displayed in the NIC attribute. If no QoS is displayed, click Install, select "QoS packet Plan Task" in the service and restart IIS after installation. The bandwidth limit takes effect. Note that the server's network will be interrupted for about 20 seconds during QoS installation.