Around June of last year, I got myself a Raspberry Pi Model B+. I was super excited, but all that excitement died down when I moved overseas. I used the Pi off and on, not doing some real powerful stuff. Now, I am ready to use my Pi: in headless mode. I tried connecting my Pi to my router, with a fresh install of raspbian. Then, I powered it on. I waited around 5 minutes. Then, from my Mac, I typed ssh firstname.lastname@example.org I had previously connected to my Pi via VNC and SSH. Now, it says: connection timed out, and: host is down. I tried also doing: ping 192.168.1.38 Still the same messages. What is going on? I need help!
Side note: this is not a duplicate of other questions, because others like this use a wifi dongle, or their internet works, but not their pinging.