I don't normally move my laptop. Today I made an exception and took it to a friend's house. Once I've returned home, I was no longer able to connect to the Internet. The browser says: "Server not found" and the system clock does not show the correct time. I don't use WiFi, I connect to the Internet using a physical connection. When I connect the same cable to my desktop Mac, I have no trouble connecting to the Internet, so the problem is not with my router or Internet service provider. I restarted my laptop in Internet recovery mode and was able to browse the Internet while in that mode. Please help me restore Internet connectivity.
MacBook Pro macOS Sierra Version 10.12.3