socket was close while receive data. is it ban or bad stellite server?
accept shares, accept shares and suddenly disconnection for all 3 rigs.

Its not ban don't worry.
You get banned for duplicate shares, but the miner reports that too.
Try downloading new version 1.2.5, you can set
timeout for server connection in config file maybe that helps.
Optional config parameters :"timeout" : WHEN IS A CONNECTION TO THE POOL TREATED AS TIMED OUT , IN SECONDS
"retry_time" : HOW MUCH TO WAIT TILL RECONNECTING WHEN DISCONNECTED FROM POOL, IN SECONDS
"giveup_limit" : HOW MANY TIMES TO TRY RECONNECTING, SET TO 0 FOR UNLIMITED