Sorry if this was misleading (english is not my first language).
The surf ban is for all saves. I have switched back to my current new save and it is exactly the same like in the old save.
What I meant is that it is funny that you by coincidence both times tried it too early in the morning or too late in the evening. And for me when I tried in the new save it was 6:17pm and all worked fine, in the old save also by coincidence 6:39pm. And if I would not had tried a second time were it was already past 7pm I would not had started to investigate and would have thought that all is working normally.