ok heres my take on this, they do these random shut downs to keep miners on their toes. in some article it has been explained this is how china has implemented

ok heres my take on this, they do these random shut downs to keep miners on their toes. in some article it has been explained this is how china has implemented firewall policy. if they detect unknown traffic they constrict your flow gradually until you can't do anything. this might be one of those moves, not a clear restriction but rest of miners should be aware of impeding wave of problems caused by PRC oligarchs.