I had this problem
No matter what you do in LtnRPC, it still appears to be on.
Did you flash your drive while RPC was off, because this causes what u describe.
Basically to fix it, you need to go to ltnRPC, ENABLE RPC. Then reflash your drive. And then DISABLE RPC. And to avoid the problem, just remember to enable rpc before you flash your drive before disableing it again.