Thomas Dalton wrote:
If you can't load that error page, and it's
only wikipedia that's a problem,
then something very odd seems to be going on...
Not that odd, there are about 150 IP addresses that are blocked from any
kind of Wikipedia access, mostly remote loading websites. There should be
an "access denied" error message in this case. If there is no error
message, then the most common diagnosis is a routing problem in the user's
ISP.
In any case, it's a problem for a system administrator to track down, so
the best forum is the #wikimedia-tech channel on
irc.freenode.net.
-- Tim Starling