Communication nrf24LE1 and nrf24L01+

Question

I'm trying to accomplish a communication from the nrf24LE1 to the nrf24L01+. The nrf24L01+ is hooked up to an Arduino UNO. The nrf24LE1 is flashed with the "enhanced_shockburst_ptx_nrf24le1.hex" from the nRFgo SDK V2.3.0.10040. On the Spectrum Analyzer I can see a peak on 2.402Ghz from the nrf24LE1. 
 The issue is that I can't receive the data packets from the nrf24LE1 on the nrf24L01+. I've written a simple sketch but it seems that it doesn't work. Anyone any Idea what I've missed? I always get 0x0E in the STATUS register of the nrf24L01+ 
 #include <SPI.h>

#define CE 7
#define CSN 8

#define R_REGISTER 0b00000000
#define W_REGISTER 0b00100000

#define CONFIG 0x00
#define CONFIG_MASK_RX_DR 0x01<<6
#define CONFIG_MASK_TX_DS 0x01<<5
#define CONFIG_MASK_MAX_RT 0x01<<4
#define CONFIG_EN_CRC 0x01<<3
#define CONFIG_CRCO 0x01<<2
#define CONFIG_PWR_UP 0x01<<1
#define CONFIG_PRIM_RX 0x01<<0

#define STATUS 0x07
#define STATUS_RX_DR 0x01<<6
#define STATUS_TX_DS 0x01<<5
#define STATUS_MAX_RT 0x01<<4
#define STATUS_TX_FULL 0x01<<0

#define RX_PW_P0 0x11

void write_register(byte address, byte data) {
 digitalWrite(CSN, 0);
 SPI.transfer(W_REGISTER | address);
 SPI.transfer(data);
 digitalWrite(CSN, 1);
}

byte read_register(byte address) {
 byte reply;
 digitalWrite(CSN, 0);
 SPI.transfer(R_REGISTER | address);
 reply = SPI.transfer(0);
 digitalWrite(CSN, 1);
 return reply;
}

void setup() {
 pinMode(CE, OUTPUT);
 pinMode(CSN, OUTPUT);

 digitalWrite(CE, 0);
 digitalWrite(CSN, 1);
 
 SPI.begin();
 SPI.setBitOrder(MSBFIRST);

 Serial.begin(115200);

 // Activate RX mode
 write_register(CONFIG, read_register(CONFIG) | CONFIG_PRIM_RX);

 // Set Payload to 3 Bytes
 write_register(RX_PW_P0, 3);
 
 // PWR_UP
 write_register(CONFIG, read_register(CONFIG) | CONFIG_PWR_UP);

 // Activate Receiver
 digitalWrite(CE, 1);
}

void loop() {
 if( read_register(0x07) & 0x40 ) {
 Serial.println("Received Data!!");
 write_register(0x07, read_register(0x07) | 0x40);
 } else {
 Serial.println("No data!");
 Serial.println("Status: ");
 Serial.println( read_register(0x07), HEX);
 }
 delay(1000);
}