What if Ubuntu suddenly fails to access the Internet?

What if Ubuntu suddenly fails to access the Internet?

When I got home, I also wanted to check the program and open the Virtual Machine VM on WIN8, then start Ubuntu ....................................

Wait for the interface as usual, enter the password, and then modify the program ..............

After everything is ready, prepare to compile the project and suddenly cannot get to the network. what is wrong? First encounter ..........

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Right-click "my computer", manage/service, and view vmware-related services. VMware authorization service, VMware DHCP service, and VMware NAT service are not started. The problem is found, it's easy. Select Start and set the start method to automatic, so that the next time the host is switched on and off, it will automatically start.

Continue coding .....................................