Good predecessors, I use Vmware on their desktop is configured with a virtual machine, use the bridge pattern, then configure the network card, network so that at the beginning, use Xshell can also be connected, but in the use the suddenly broke, I went to run on the Vm ifconfog find information such as the IP address of the card, then insert the 10 minutes of IP can see again, Xshell can be connected, but after a while is broken again, want to ask next everybody this is what causes,