I cant logoin the internal “Sina Weibo” in IOS6(Chinese) with my exist ID

two days back I could, now I also have this problem.

I had the same issue. Both on my iPhone 4S and The new iPad.

But today when I went to China and use the local Wi-Fi, I can successfully login.

I guess it blocks the login verification when the Internet connection is out of China.

It's working again now. Thank goodness.