I can't log in my mobage account (for a while)

I just registered to a new iPhone 5 Last night successfully, (I can trade) and I played a few hours after the maintenance normally. Just now, I turned on the game after idol for a while. They game suddenly require me to log in to the mobage account again. They following msg appeared while I was trying to access my account:

"Please check your internet setting"

I can't log in to my account for awhile, after several try I got in.

Anyone have the same heart attack like me ? O.o

Something similar just happened to me!

I checked my email on my phone, and when I went back to the game, I was logged out. It required me to log in with Facebook or Mobage username and wouldn't work for any of the passwords it should have been.

Fortunately, I found the Mobage account creation email and reset my password, then it worked.

I definitely had a heart attack when it wouldn't let me log in. o.O