I just received this message from the isxGames.com ISP:
Hi. I'm sorry to report new news that we've learned. Above.net (a major
traffic carrier) is currently having issues between Germany and the
States. We've alerted them to the issue, but there is nothing we can do
for the moment except wait for them to work on their section of that
international route. We have not heard any ETA from them, but I expect
it will be days, at least.