Xbee communication between S2 and S2C

Am using two XBee’s s2c as coordinator and S2 as a router to interface Arduino UNO and rpi3. I am able to able to communicate with the coordinator to the router but the reverse is not happening. Please suggest me ways to deal the issues.

This is my Arduino code(Router):

SoftwareSerial mySerial(10, 11); // RX, TX

void setup() {
// Open serial communications and wait for port to open:
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only

Serial.println(“Goodnight moon!”);

// set the data rate for the SoftwareSerial port
mySerial.println(“Hello, world?”);

void loop() { // run over and over
if (mySerial.available()) {
//int receive = mySerial.read();
if (Serial.available()) {
//int serialreceive = Serial.read();

Check the baud rate and if your Lib files require the XBee be in API mode or not.