China is on the National Holiday. (Chinese Golden Week)
For now, may be create an account at BTCGUILD.COM and hash. It does recognise the full 2TH/s speed at btcguild.com pool
I know this is not the best solution but at least temporary you will get your BTC mined at the hashing speed we paid for.
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If anyone is having problem powering up S4...
There is a little knob/switch at the back of the S4 where you plug the power cable. Please press and hold it for 2-3 seconds and it will power up.
https://www.youtube.com/watch?v=KD4vdR7ZS8s&feature=youtu.be***********************************
If you see a few X on your asic status page, please try to shut it off and wait for 10-15 minutes then power it back on and see if the x goes away.
Happy Mining!!