May be required in some disconnect scenarios

src/net/tcp/iscsi.c

 	/* Reset TX and RX state machines */
 	iscsi->tx_state = ISCSI_TX_IDLE;
 	iscsi->rx_state = ISCSI_RX_BHS;
+	iscsi->rx_offset = 0;
 
 	/* Free any temporary dynamically allocated memory */
 	chap_finish ( &iscsi->chap );