Can you try from a different connection? This is a firewall security thing that should disappear after some time. Until then, you should have access from another connection, like your mobile/home network.

Thanks for trying, but not helped! I tried via my mobile connection, but same error. And this error has been now for some weeks.

I have tried now with 2 computers * with 2 connections. no can do :(

Weird. But try now :)

Nope

Now success with mobile! Thanks you very much! oss!