diff --git a/FreeRTOS-Plus/Demo/AWS/Device_Defender_Windows_Simulator/Device_Defender_Demo/main.c b/FreeRTOS-Plus/Demo/AWS/Device_Defender_Windows_Simulator/Device_Defender_Demo/main.c
index d2c1272bc..c98b3316c 100644
--- a/FreeRTOS-Plus/Demo/AWS/Device_Defender_Windows_Simulator/Device_Defender_Demo/main.c
+++ b/FreeRTOS-Plus/Demo/AWS/Device_Defender_Windows_Simulator/Device_Defender_Demo/main.c
@@ -231,6 +231,7 @@ static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
     uint32_t ulLoggingIPAddress;
+    uint32_t ulRandomNumbers[ 4 ];
 
     ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configUDP_LOGGING_ADDR0, configUDP_LOGGING_ADDR1, configUDP_LOGGING_ADDR2, configUDP_LOGGING_ADDR3 );
     vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
@@ -245,7 +246,12 @@ static void prvMiscInitialisation( void )
     time( &xTimeNow );
     LogDebug( ( "Seed for randomizer: %lu\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
-    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 3 ] );
+    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ulRandomNumbers[ 0 ], ulRandomNumbers[ 1 ], ulRandomNumbers[ 2 ], ulRandomNumbers[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
@@ -313,8 +319,6 @@ extern uint32_t ulApplicationGetNextSequenceNumber( uint32_t ulSourceAddress,
 /*
  * Set *pulNumber to a random number, and return pdTRUE. When the random number
  * generator is broken, it shall return pdFALSE.
- * The macros ipconfigRAND32() and configRAND32() are not in use
- * anymore in FreeRTOS+TCP.
  *
  * THIS IS ONLY A DUMMY IMPLEMENTATION THAT RETURNS A PSEUDO RANDOM NUMBER SO IS
  * NOT INTENDED FOR USE IN PRODUCTION SYSTEMS.
diff --git a/FreeRTOS-Plus/Demo/AWS/Device_Shadow_Windows_Simulator/Common/main.c b/FreeRTOS-Plus/Demo/AWS/Device_Shadow_Windows_Simulator/Common/main.c
index f4e640ecb..bdb550b2c 100644
--- a/FreeRTOS-Plus/Demo/AWS/Device_Shadow_Windows_Simulator/Common/main.c
+++ b/FreeRTOS-Plus/Demo/AWS/Device_Shadow_Windows_Simulator/Common/main.c
@@ -230,6 +230,7 @@ static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
     uint32_t ulLoggingIPAddress;
+    uint32_t ulRandomNumbers[ 4 ];
 
     ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configUDP_LOGGING_ADDR0, configUDP_LOGGING_ADDR1, configUDP_LOGGING_ADDR2, configUDP_LOGGING_ADDR3 );
     vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
@@ -244,7 +245,12 @@ static void prvMiscInitialisation( void )
     time( &xTimeNow );
     LogDebug( ( "Seed for randomizer: %lu\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
-    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 3 ] );
+    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ulRandomNumbers[ 0 ], ulRandomNumbers[ 1 ], ulRandomNumbers[ 2 ], ulRandomNumbers[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
@@ -312,8 +318,6 @@ extern uint32_t ulApplicationGetNextSequenceNumber( uint32_t ulSourceAddress,
 /*
  * Set *pulNumber to a random number, and return pdTRUE. When the random number
  * generator is broken, it shall return pdFALSE.
- * The macros ipconfigRAND32() and configRAND32() are not in use
- * anymore in FreeRTOS+TCP.
  *
  * THIS IS ONLY A DUMMY IMPLEMENTATION THAT RETURNS A PSEUDO RANDOM NUMBER SO IS
  * NOT INTENDED FOR USE IN PRODUCTION SYSTEMS.
diff --git a/FreeRTOS-Plus/Demo/AWS/Fleet_Provisioning_Windows_Simulator/Fleet_Provisioning_With_CSR_Demo/main.c b/FreeRTOS-Plus/Demo/AWS/Fleet_Provisioning_Windows_Simulator/Fleet_Provisioning_With_CSR_Demo/main.c
index 84c9a9d47..2152c18fb 100644
--- a/FreeRTOS-Plus/Demo/AWS/Fleet_Provisioning_Windows_Simulator/Fleet_Provisioning_With_CSR_Demo/main.c
+++ b/FreeRTOS-Plus/Demo/AWS/Fleet_Provisioning_Windows_Simulator/Fleet_Provisioning_With_CSR_Demo/main.c
@@ -227,6 +227,7 @@ static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
     uint32_t ulLoggingIPAddress;
+    uint32_t ulRandomNumbers[ 4 ];
 
     ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configUDP_LOGGING_ADDR0, configUDP_LOGGING_ADDR1, configUDP_LOGGING_ADDR2, configUDP_LOGGING_ADDR3 );
     vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
@@ -241,7 +242,12 @@ static void prvMiscInitialisation( void )
     time( &xTimeNow );
     LogDebug( ( "Seed for randomizer: %lu\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
-    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 3 ] );
+    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ulRandomNumbers[ 0 ], ulRandomNumbers[ 1 ], ulRandomNumbers[ 2 ], ulRandomNumbers[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
@@ -309,8 +315,6 @@ extern uint32_t ulApplicationGetNextSequenceNumber( uint32_t ulSourceAddress,
 /*
  * Set *pulNumber to a random number, and return pdTRUE. When the random number
  * generator is broken, it shall return pdFALSE.
- * The macros ipconfigRAND32() and configRAND32() are not in use
- * anymore in FreeRTOS+TCP.
  *
  * THIS IS ONLY A DUMMY IMPLEMENTATION THAT RETURNS A PSEUDO RANDOM NUMBER SO IS
  * NOT INTENDED FOR USE IN PRODUCTION SYSTEMS.
diff --git a/FreeRTOS-Plus/Demo/AWS/Jobs_Windows_Simulator/Jobs_Demo/main.c b/FreeRTOS-Plus/Demo/AWS/Jobs_Windows_Simulator/Jobs_Demo/main.c
index f8a2928c0..0f6dcb73c 100755
--- a/FreeRTOS-Plus/Demo/AWS/Jobs_Windows_Simulator/Jobs_Demo/main.c
+++ b/FreeRTOS-Plus/Demo/AWS/Jobs_Windows_Simulator/Jobs_Demo/main.c
@@ -226,6 +226,7 @@ static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
     uint32_t ulLoggingIPAddress;
+    uint32_t ulRandomNumbers[ 4 ];
 
     ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configUDP_LOGGING_ADDR0, configUDP_LOGGING_ADDR1, configUDP_LOGGING_ADDR2, configUDP_LOGGING_ADDR3 );
     vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
@@ -240,7 +241,12 @@ static void prvMiscInitialisation( void )
     time( &xTimeNow );
     LogDebug( ( "Seed for randomizer: %lu\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
-    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 3 ] );
+    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ulRandomNumbers[ 0 ], ulRandomNumbers[ 1 ], ulRandomNumbers[ 2 ], ulRandomNumbers[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
@@ -308,8 +314,6 @@ extern uint32_t ulApplicationGetNextSequenceNumber( uint32_t ulSourceAddress,
 /*
  * Set *pulNumber to a random number, and return pdTRUE. When the random number
  * generator is broken, it shall return pdFALSE.
- * The macros ipconfigRAND32() and configRAND32() are not in use
- * anymore in FreeRTOS+TCP.
  *
  * THIS IS ONLY A DUMMY IMPLEMENTATION THAT RETURNS A PSEUDO RANDOM NUMBER SO IS
  * NOT INTENDED FOR USE IN PRODUCTION SYSTEMS.
diff --git a/FreeRTOS-Plus/Demo/AWS/Ota_Windows_Simulator/Ota_Over_Http_Demo/main.c b/FreeRTOS-Plus/Demo/AWS/Ota_Windows_Simulator/Ota_Over_Http_Demo/main.c
index 010a4d2d7..501a14f82 100644
--- a/FreeRTOS-Plus/Demo/AWS/Ota_Windows_Simulator/Ota_Over_Http_Demo/main.c
+++ b/FreeRTOS-Plus/Demo/AWS/Ota_Windows_Simulator/Ota_Over_Http_Demo/main.c
@@ -225,6 +225,7 @@ static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
     uint32_t ulLoggingIPAddress;
+    uint32_t ulRandomNumbers[ 4 ];
 
     ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configUDP_LOGGING_ADDR0, configUDP_LOGGING_ADDR1, configUDP_LOGGING_ADDR2, configUDP_LOGGING_ADDR3 );
     vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
@@ -239,7 +240,16 @@ static void prvMiscInitialisation( void )
     time( &xTimeNow );
     LogDebug( ( "Seed for randomizer: %lu\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
-    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 3 ] );
+    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n",
+                ulRandomNumbers[ 0 ],
+                ulRandomNumbers[ 1 ],
+                ulRandomNumbers[ 2 ],
+                ulRandomNumbers[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
@@ -307,8 +317,6 @@ extern uint32_t ulApplicationGetNextSequenceNumber( uint32_t ulSourceAddress,
 /*
  * Set *pulNumber to a random number, and return pdTRUE. When the random number
  * generator is broken, it shall return pdFALSE.
- * The macros ipconfigRAND32() and configRAND32() are not in use
- * anymore in FreeRTOS+TCP.
  *
  * THIS IS ONLY A DUMMY IMPLEMENTATION THAT RETURNS A PSEUDO RANDOM NUMBER SO IS
  * NOT INTENDED FOR USE IN PRODUCTION SYSTEMS.
diff --git a/FreeRTOS-Plus/Demo/AWS/Ota_Windows_Simulator/Ota_Over_Mqtt_Demo/main.c b/FreeRTOS-Plus/Demo/AWS/Ota_Windows_Simulator/Ota_Over_Mqtt_Demo/main.c
index 4e5f61df0..c7cf22b0f 100644
--- a/FreeRTOS-Plus/Demo/AWS/Ota_Windows_Simulator/Ota_Over_Mqtt_Demo/main.c
+++ b/FreeRTOS-Plus/Demo/AWS/Ota_Windows_Simulator/Ota_Over_Mqtt_Demo/main.c
@@ -226,6 +226,7 @@ static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
     uint32_t ulLoggingIPAddress;
+    uint32_t ulRandomNumbers[ 4 ];
 
     ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configUDP_LOGGING_ADDR0, configUDP_LOGGING_ADDR1, configUDP_LOGGING_ADDR2, configUDP_LOGGING_ADDR3 );
     vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
@@ -240,7 +241,16 @@ static void prvMiscInitialisation( void )
     time( &xTimeNow );
     LogDebug( ( "Seed for randomizer: %lu\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
-    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 3 ] );
+    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n",
+                ulRandomNumbers[ 0 ],
+                ulRandomNumbers[ 1 ],
+                ulRandomNumbers[ 2 ],
+                ulRandomNumbers[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
@@ -308,8 +318,6 @@ extern uint32_t ulApplicationGetNextSequenceNumber( uint32_t ulSourceAddress,
 /*
  * Set *pulNumber to a random number, and return pdTRUE. When the random number
  * generator is broken, it shall return pdFALSE.
- * The macros ipconfigRAND32() and configRAND32() are not in use
- * anymore in FreeRTOS+TCP.
  *
  * THIS IS ONLY A DUMMY IMPLEMENTATION THAT RETURNS A PSEUDO RANDOM NUMBER SO IS
  * NOT INTENDED FOR USE IN PRODUCTION SYSTEMS.
diff --git a/FreeRTOS-Plus/Demo/FreeRTOS_Cellular_Interface_Windows_Simulator/Common/main.c b/FreeRTOS-Plus/Demo/FreeRTOS_Cellular_Interface_Windows_Simulator/Common/main.c
index b62afe625..3492c1079 100644
--- a/FreeRTOS-Plus/Demo/FreeRTOS_Cellular_Interface_Windows_Simulator/Common/main.c
+++ b/FreeRTOS-Plus/Demo/FreeRTOS_Cellular_Interface_Windows_Simulator/Common/main.c
@@ -278,8 +278,6 @@ extern uint32_t ulApplicationGetNextSequenceNumber( uint32_t ulSourceAddress,
 /*
  * Set *pulNumber to a random number, and return pdTRUE. When the random number
  * generator is broken, it shall return pdFALSE.
- * The macros ipconfigRAND32() and configRAND32() are not in use
- * anymore in FreeRTOS+TCP.
  *
  * THIS IS ONLY A DUMMY IMPLEMENTATION THAT RETURNS A PSEUDO RANDOM NUMBER SO IS
  * NOT INTENDED FOR USE IN PRODUCTION SYSTEMS.
diff --git a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Posix/TCPEchoClient_SingleTasks.c b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Posix/TCPEchoClient_SingleTasks.c
index 6ba3fe5af..a345f5d78 100644
--- a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Posix/TCPEchoClient_SingleTasks.c
+++ b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Posix/TCPEchoClient_SingleTasks.c
@@ -313,12 +313,14 @@ missing data. */
 	BaseType_t lCharactersToAdd, lCharacter;
 	char cChar = '0';
 	const BaseType_t lMinimumLength = 60;
+        uint32_t ulRandomNumber;
 
 		/* Randomise the number of characters that will be sent in the echo
 		request. */
 		do
 		{
-			lCharactersToAdd = ipconfigRAND32() % ( ulBufferLength - 20UL );
+                        ( void ) xApplicationGetRandomNumber( &ulRandomNumber );
+			lCharactersToAdd = ulRandomNumber % ( ulBufferLength - 20UL );
 		} while( ( lCharactersToAdd == 0 ) || ( lCharactersToAdd < lMinimumLength ) ); /* Must be at least enough to add the unique text to the start of the string later. */
 
 		/* Fill the buffer. */
diff --git a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Posix/main_networking.c b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Posix/main_networking.c
index 7fe04901b..cd4b13068 100644
--- a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Posix/main_networking.c
+++ b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Posix/main_networking.c
@@ -236,16 +236,21 @@ static void prvSRand( UBaseType_t ulSeed )
 static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
-
+    uint32_t ulRandomNumbers[ 4 ];
     /* Seed the random number generator. */
     time( &xTimeNow );
     FreeRTOS_debug_printf( ( "Seed for randomiser: %lu\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 3 ] );
     FreeRTOS_debug_printf( ( "Random numbers: %08X %08X %08X %08X\n",
-                             ipconfigRAND32(),
-                             ipconfigRAND32(),
-                             ipconfigRAND32(),
-                             ipconfigRAND32() ) );
+                             ulRandomNumbers[ 0 ],
+                             ulRandomNumbers[ 1 ],
+                             ulRandomNumbers[ 2 ],
+                             ulRandomNumbers[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
diff --git a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Qemu_mps2/TCPEchoClient_SingleTasks.c b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Qemu_mps2/TCPEchoClient_SingleTasks.c
index ad83f1913..db7d413b0 100644
--- a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Qemu_mps2/TCPEchoClient_SingleTasks.c
+++ b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Qemu_mps2/TCPEchoClient_SingleTasks.c
@@ -318,12 +318,14 @@ missing data. */
 	BaseType_t lCharactersToAdd, lCharacter;
 	char cChar = '0';
 	const BaseType_t lMinimumLength = 60;
+        uint32_t ulRandomNumber;
 
 		/* Randomise the number of characters that will be sent in the echo
 		request. */
 		do
 		{
-			lCharactersToAdd = ipconfigRAND32() % ( ulBufferLength - 20UL );
+                        ( void ) xApplicationGetRandomNumber( &ulRandomNumber );
+			lCharactersToAdd = ulRandomNumber % ( ulBufferLength - 20UL );
 		} while( ( lCharactersToAdd == 0 ) || ( lCharactersToAdd < lMinimumLength ) ); /* Must be at least enough to add the unique text to the start of the string later. */
 
 		/* Fill the buffer. */
diff --git a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Qemu_mps2/main_networking.c b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Qemu_mps2/main_networking.c
index cc14ead23..bec60deac 100644
--- a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Qemu_mps2/main_networking.c
+++ b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Echo_Qemu_mps2/main_networking.c
@@ -257,16 +257,22 @@ static void prvSRand( UBaseType_t ulSeed )
 static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
+    uint32_t ulRandomNumbers[ 4 ];
 
     /* Seed the random number generator. */
     time( &xTimeNow );
     FreeRTOS_debug_printf( ( "Seed for randomiser: %lu\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 3 ] );
     FreeRTOS_debug_printf( ( "Random numbers: %08X %08X %08X %08X\n",
-                             ipconfigRAND32(),
-                             ipconfigRAND32(),
-                             ipconfigRAND32(),
-                             ipconfigRAND32() ) );
+                             ulRandomNumbers[ 0 ],
+                             ulRandomNumbers[ 1 ],
+                             ulRandomNumbers[ 2 ],
+                             ulRandomNumbers[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
diff --git a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Minimal_Windows_Simulator/DemoTasks/TCPEchoClient_SingleTasks.c b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Minimal_Windows_Simulator/DemoTasks/TCPEchoClient_SingleTasks.c
index 92dfb32a7..db7a9b9e8 100644
--- a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Minimal_Windows_Simulator/DemoTasks/TCPEchoClient_SingleTasks.c
+++ b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Minimal_Windows_Simulator/DemoTasks/TCPEchoClient_SingleTasks.c
@@ -298,12 +298,14 @@ static BaseType_t prvCreateTxData( char *cBuffer, uint32_t ulBufferLength )
 BaseType_t lCharactersToAdd, lCharacter;
 char cChar = '0';
 const BaseType_t lMinimumLength = 60;
+uint32_t ulRandomNumber;
 
 	/* Randomise the number of characters that will be sent in the echo
 	request. */
 	do
 	{
-		lCharactersToAdd = ipconfigRAND32() % ( ulBufferLength - 20UL );
+                ( void ) xApplicationGetRandomNumber( &ulRandomNumber );
+		lCharactersToAdd = ulRandomNumber % ( ulBufferLength - 20UL );
 	} while ( ( lCharactersToAdd == 0 ) || ( lCharactersToAdd < lMinimumLength ) ); /* Must be at least enough to add the unique text to the start of the string later. */
 
 	/* Fill the buffer. */
diff --git a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Minimal_Windows_Simulator/main.c b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Minimal_Windows_Simulator/main.c
index 790a40c3b..865ccde50 100644
--- a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Minimal_Windows_Simulator/main.c
+++ b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Minimal_Windows_Simulator/main.c
@@ -1,6 +1,6 @@
 /*
  * FreeRTOS V202112.00
- * Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
  * this software and associated documentation files (the "Software"), to deal in
@@ -20,7 +20,7 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
  * https://www.FreeRTOS.org
- * https://aws.amazon.com/freertos
+ * https://github.com/FreeRTOS
  *
  */
 
@@ -300,6 +300,7 @@ static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
     uint32_t ulLoggingIPAddress;
+    uint32_t ulRandomNumbers[ 4 ];
 
     ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configECHO_SERVER_ADDR0, configECHO_SERVER_ADDR1, configECHO_SERVER_ADDR2, configECHO_SERVER_ADDR3 );
     vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
@@ -308,7 +309,16 @@ static void prvMiscInitialisation( void )
     time( &xTimeNow );
     FreeRTOS_debug_printf( ( "Seed for randomiser: %lu\r\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
-    FreeRTOS_debug_printf( ( "Random numbers: %08X %08X %08X %08X\r\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 3 ] );
+    FreeRTOS_debug_printf( ( "Random numbers: %08X %08X %08X %08X\r\n",
+                             ulRandomNumbers[ 0 ],
+                             ulRandomNumbers[ 1 ],
+                             ulRandomNumbers[ 2 ],
+                             ulRandomNumbers[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
diff --git a/FreeRTOS-Plus/Demo/coreHTTP_Windows_Simulator/Common/main.c b/FreeRTOS-Plus/Demo/coreHTTP_Windows_Simulator/Common/main.c
index 323510da1..c362e9802 100644
--- a/FreeRTOS-Plus/Demo/coreHTTP_Windows_Simulator/Common/main.c
+++ b/FreeRTOS-Plus/Demo/coreHTTP_Windows_Simulator/Common/main.c
@@ -226,6 +226,7 @@ static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
     uint32_t ulLoggingIPAddress;
+    uint32_t ulRandomNumbers[ 4 ];
 
     ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configUDP_LOGGING_ADDR0, configUDP_LOGGING_ADDR1, configUDP_LOGGING_ADDR2, configUDP_LOGGING_ADDR3 );
     vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
@@ -240,7 +241,16 @@ static void prvMiscInitialisation( void )
     time( &xTimeNow );
     LogDebug( ( "Seed for randomizer: %lu\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
-    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 3 ] );
+    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n",
+                ulRandomNumbers[ 0 ],
+                ulRandomNumbers[ 1 ],
+                ulRandomNumbers[ 2 ],
+                ulRandomNumbers[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
@@ -308,8 +318,6 @@ extern uint32_t ulApplicationGetNextSequenceNumber( uint32_t ulSourceAddress,
 /*
  * Set *pulNumber to a random number, and return pdTRUE. When the random number
  * generator is broken, it shall return pdFALSE.
- * The macros ipconfigRAND32() and configRAND32() are not in use
- * anymore in FreeRTOS+TCP.
  *
  * THIS IS ONLY A DUMMY IMPLEMENTATION THAT RETURNS A PSEUDO RANDOM NUMBER SO IS
  * NOT INTENDED FOR USE IN PRODUCTION SYSTEMS.
diff --git a/FreeRTOS-Plus/Demo/coreMQTT_Windows_Simulator/Common/main.c b/FreeRTOS-Plus/Demo/coreMQTT_Windows_Simulator/Common/main.c
index 42446b40f..bbd9f2496 100644
--- a/FreeRTOS-Plus/Demo/coreMQTT_Windows_Simulator/Common/main.c
+++ b/FreeRTOS-Plus/Demo/coreMQTT_Windows_Simulator/Common/main.c
@@ -262,6 +262,7 @@ static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
     uint32_t ulLoggingIPAddress;
+    uint32_t ulRandomNumbers[ 4 ];
 
     ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configUDP_LOGGING_ADDR0, configUDP_LOGGING_ADDR1, configUDP_LOGGING_ADDR2, configUDP_LOGGING_ADDR3 );
     vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
@@ -276,7 +277,16 @@ static void prvMiscInitialisation( void )
     time( &xTimeNow );
     LogDebug( ( "Seed for randomizer: %lu\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
-    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 3 ] );
+    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n",
+                ulRandomNumbers[ 0 ],
+                ulRandomNumbers[ 1 ],
+                ulRandomNumbers[ 2 ],
+                ulRandomNumbers[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
@@ -344,8 +354,6 @@ extern uint32_t ulApplicationGetNextSequenceNumber( uint32_t ulSourceAddress,
 /*
  * Set *pulNumber to a random number, and return pdTRUE. When the random number
  * generator is broken, it shall return pdFALSE.
- * The macros ipconfigRAND32() and configRAND32() are not in use
- * anymore in FreeRTOS+TCP.
  *
  * THIS IS ONLY A DUMMY IMPLEMENTATION THAT RETURNS A PSEUDO RANDOM NUMBER SO IS
  * NOT INTENDED FOR USE IN PRODUCTION SYSTEMS.
diff --git a/FreeRTOS-Plus/Demo/corePKCS11_MQTT_Mutual_Auth_Windows_Simulator/main.c b/FreeRTOS-Plus/Demo/corePKCS11_MQTT_Mutual_Auth_Windows_Simulator/main.c
index b1b957164..65907b7a6 100644
--- a/FreeRTOS-Plus/Demo/corePKCS11_MQTT_Mutual_Auth_Windows_Simulator/main.c
+++ b/FreeRTOS-Plus/Demo/corePKCS11_MQTT_Mutual_Auth_Windows_Simulator/main.c
@@ -220,6 +220,7 @@ static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
     uint32_t ulLoggingIPAddress;
+    uint32_t ulRandomNumbers[ 4 ];
 
     ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configUDP_LOGGING_ADDR0, configUDP_LOGGING_ADDR1, configUDP_LOGGING_ADDR2, configUDP_LOGGING_ADDR3 );
     vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
@@ -234,7 +235,16 @@ static void prvMiscInitialisation( void )
     time( &xTimeNow );
     LogDebug( ( "Seed for randomizer: %lu\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
-    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumbers[ 3 ] );
+    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n",
+                ulRandomNumbers[ 0 ],
+                ulRandomNumbers[ 1 ],
+                ulRandomNumbers[ 2 ],
+                ulRandomNumbers[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
@@ -302,8 +312,6 @@ extern uint32_t ulApplicationGetNextSequenceNumber( uint32_t ulSourceAddress,
 /*
  * Set *pulNumber to a random number, and return pdTRUE. When the random number
  * generator is broken, it shall return pdFALSE.
- * The macros ipconfigRAND32() and configRAND32() are not in use
- * anymore in FreeRTOS+TCP.
  *
  * THIS IS ONLY A DUMMY IMPLEMENTATION THAT RETURNS A PSEUDO RANDOM NUMBER SO IS
  * NOT INTENDED FOR USE IN PRODUCTION SYSTEMS.
diff --git a/FreeRTOS-Plus/Demo/coreSNTP_Windows_Simulator/main.c b/FreeRTOS-Plus/Demo/coreSNTP_Windows_Simulator/main.c
index 4f97365ef..62e41700e 100755
--- a/FreeRTOS-Plus/Demo/coreSNTP_Windows_Simulator/main.c
+++ b/FreeRTOS-Plus/Demo/coreSNTP_Windows_Simulator/main.c
@@ -273,6 +273,7 @@ static void prvMiscInitialisation( void )
 {
     time_t xTimeNow;
     uint32_t ulLoggingIPAddress;
+    uint32_t ulRandomNumber[ 4 ];
 
     ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configUDP_LOGGING_ADDR0, configUDP_LOGGING_ADDR1, configUDP_LOGGING_ADDR2, configUDP_LOGGING_ADDR3 );
     vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT );
@@ -287,7 +288,16 @@ static void prvMiscInitialisation( void )
     time( &xTimeNow );
     LogDebug( ( "Seed for randomizer: %lu\n", xTimeNow ) );
     prvSRand( ( uint32_t ) xTimeNow );
-    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) );
+
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumber[ 0 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumber[ 1 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumber[ 2 ] );
+    ( void ) xApplicationGetRandomNumber( &ulRandomNumber[ 3 ] );
+    LogDebug( ( "Random numbers: %08X %08X %08X %08X\n",
+                ulRandomNumber[ 0 ],
+                ulRandomNumber[ 1 ],
+                ulRandomNumber[ 2 ],
+                ulRandomNumber[ 3 ] ) );
 }
 /*-----------------------------------------------------------*/
 
@@ -355,8 +365,6 @@ extern uint32_t ulApplicationGetNextSequenceNumber( uint32_t ulSourceAddress,
 /*
  * Set *pulNumber to a random number, and return pdTRUE. When the random number
  * generator is broken, it shall return pdFALSE.
- * The macros ipconfigRAND32() and configRAND32() are not in use
- * anymore in FreeRTOS+TCP.
  *
  * THIS IS ONLY A DUMMY IMPLEMENTATION THAT RETURNS A PSEUDO RANDOM NUMBER SO IS
  * NOT INTENDED FOR USE IN PRODUCTION SYSTEMS.