We are currently having some issues with our DNS (in which we use DNS.com) so there may be some temporary issues connecting to our service depending on GEO Location. We have contacted them to resolve this and will post here when the situation is resolved.
Update:Any users having issues connecting to the service can still get access from the Web using the Gateway URL http://126.96.36.199 or http://188.8.131.52 for the EU website
Update: The issue should now be resolved. Please contact us at Support AT SMEStorage DOT Com if you continue to have a connectivity issue.