Hi Smicker,
Thanks! It didn't work whereas it did work for own switch (member 0).
{master:0} admin@Juniper-L> request session member 1 connect to address 128.0.0.17: No route to host Trying 10.0.0.17... fpc1: No route to host connect to address 128.0.0.17: No route to host Trying 10.0.0.17... fpc1: No route to host