[snip]
I know what this means, but what are some reasons why we would get this
error?

Warning: fsockopen(): unable to connect to 128.42.244.20:80
[/snip]

The primary reason that you would get this error is because you were
unable to connect to the host using sockets. 

The causes may be varied, firewalls, non-existent host, incorrect port,
authentication, the cable is not plugged in, power is off, etc.

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