I have exactly the same problem.

Pinging steemworld.org 37.17.224.60 is not getting there.

I do get a packet from 212.224.102.133 after that its dead.

8 32 ms 27 ms 33 ms cr03.fra1.de.first-colo.net [212.224.102.133]
9 * * * Request timed out.
10 * * * Request timed out.