Update Always Encounter Error 1011

i'm using IS 2014 and it works well before, since 14th,november, 2014 night, it can't update anymore,

the update status is always on but Total and Downloaded value is always 0KB, in events all are like

update encounter and error and in description it says error 1011, I don't know if this is the server problem

or BD is blocked in china now, I tried reinstall but problem persists, any help ?