First of all let me make it clear that it was not a hack attempt but there was a small DOS attack on a
website hosting which was powerful enough to bring that particular
website hosting down. Therefore the firewall on the server was tighten up. That is it.
However Jack is already looking into your issue and he will get back to you as soon as possible with his findings. But let me also add that firewall was completely shutdown to ensure if it was the case but it didn't help either.