https://e2e.ti.com/support/wireless-connectivity/zigbee-thread-group/zigbee-and-thread/f/zigbee-thread-forum/1288546/simplelink-cc13x2-26x2-sdk-firmware-not-stable-since-sdk-6-20-00-29

minimal.patch

diff --git a/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Application/mt/mt_version.c b/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Application/mt/mt_version.c
index 6a9b760..b405b99 100644
--- a/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Application/mt/mt_version.c
+++ b/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Application/mt/mt_version.c
@@ -69,15 +69,21 @@
 #include "zcomdef.h"
 #include "mt_version.h"
 
+#define CODE_REVISION_NUMBER 20231221
+
 /******************************************************************************
  * CONSTANTS
  *****************************************************************************/
 const uint8_t MTVersionString[] = {
                                    2,  /* Transport protocol revision */
-                                   0,  /* Product ID */
+                                   1,  /* Product ID */
                                    2,  /* Software major release number */
                                    7,  /* Software minor release number */
                                    1,  /* Software maintenance release number */
+                                   ((CODE_REVISION_NUMBER >> 0)  & 0xFF),
+                                   ((CODE_REVISION_NUMBER >> 8)  & 0xFF),
+                                   ((CODE_REVISION_NUMBER >> 16) & 0xFF),
+                                   ((CODE_REVISION_NUMBER >> 24) & 0xFF),
                                  };
 
 /******************************************************************************
diff --git a/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/Config/preinclude.h b/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/Config/preinclude.h
new file mode 100644
index 0000000..2c1dd50
--- /dev/null
+++ b/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/Config/preinclude.h
@@ -0,0 +1,8 @@
+#define MT_SYS_KEY_MANAGEMENT 1
+#define FEATURE_NVEXID 1
+#define MULTICAST_ENABLED FALSE
+#define CONCENTRATOR_ENABLE TRUE
+#define CONCENTRATOR_ROUTE_CACHE TRUE
+#define ZDSECMGR_TC_DEVICE_MAX 100
+#define MAX_RREQ_ENTRIES 32
+#define CONFLICTED_ADDR_TABLE_SIZE 12
diff --git a/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/Config/znp_cnf.opts b/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/Config/znp_cnf.opts
index 6e3cb6a..352ead3 100644
--- a/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/Config/znp_cnf.opts
+++ b/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/Config/znp_cnf.opts
@@ -1,7 +1,7 @@
 -DMAC_CFG_APP_PENDING_QUEUE=TRUE
--DMAC_CFG_TX_DATA_MAX=5
--DMAC_CFG_TX_MAX=8
--DMAC_CFG_RX_MAX=5
+-DMAC_CFG_TX_DATA_MAX=20
+-DMAC_CFG_TX_MAX=32
+-DMAC_CFG_RX_MAX=20
 
 -DOSAL_NV_EXTENDED
 -DADDRMGR_NV_SINGLES
@@ -32,3 +32,5 @@
 -DMT_GP_CB_FUNC
 
 -DMT_APP_CNF_FUNC
+
+-include preinclude.h
\ No newline at end of file
diff --git a/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/nwk/nwk_globals.c b/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/nwk/nwk_globals.c
index a0acd95..c8d642e 100644
--- a/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/nwk/nwk_globals.c
+++ b/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/nwk/nwk_globals.c
@@ -91,10 +91,10 @@
  * CONSTANTS
  */
 // Maximums for the data buffer queue
-#define NWK_MAX_DATABUFS_WAITING    8     // Waiting to be sent to MAC
-#define NWK_MAX_DATABUFS_SCHEDULED  5     // Timed messages to be sent
-#define NWK_MAX_DATABUFS_CONFIRMED  5     // Held after MAC confirms
-#define NWK_MAX_DATABUFS_TOTAL      12    // Total number of buffers
+#define NWK_MAX_DATABUFS_WAITING    32     // Waiting to be sent to MAC
+#define NWK_MAX_DATABUFS_SCHEDULED  20     // Timed messages to be sent
+#define NWK_MAX_DATABUFS_CONFIRMED  20     // Held after MAC confirms
+#define NWK_MAX_DATABUFS_TOTAL      48    // Total number of buffers
 
 // 1-255 (0 -> 256) X RTG_TIMER_INTERVAL
 // A known shortcoming is that when a message is enqueued as "hold" for a
diff --git a/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/sys/zglobals.c b/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/sys/zglobals.c
index 706736b..07bede3 100644
--- a/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/sys/zglobals.c
+++ b/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/Stack/sys/zglobals.c
@@ -131,7 +131,7 @@ uint8_t zgSecurePermitJoin = TRUE;
 // TC Link Key. In this scenario, if this flag is TRUE, the Trust Center will
 // encrypt the outgoing NWK Key with the default TC Link Key (ZigbeeAlliance09).
 // If this flag is FALSE (default), the Trust Center will not send the NWK Key at all.
-uint8_t zgAllowRejoinsWithWellKnownKey = FALSE;
+uint8_t zgAllowRejoinsWithWellKnownKey = TRUE; // https://e2e.ti.com/support/wireless-connectivity/zigbee-and-thread/f/158/p/882650/3265311#3265311
 
 //allowInstallCodes
 uint8_t zgAllowInstallCodes = ZG_IC_SUPPORTED_NOT_REQUIRED;
diff --git a/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/app.cfg b/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/app.cfg
index 5089a84..d3ba793 100644
--- a/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/app.cfg
+++ b/znp_CC26X2R1_LAUNCHXL_tirtos_ticlang/app.cfg
@@ -700,7 +700,7 @@ var GateMutexPri = xdc.useModule('ti.sysbios.gates.GateMutexPri');
  */
 var Memory = xdc.useModule('xdc.runtime.Memory');
 var HEAPMGR_CONFIG = 0;
-var HEAPMGR_SIZE   = 0x1800;
+var HEAPMGR_SIZE   = 0x7D00;
 
 // The following will create the #define HEAPMGR_CONFIG. It can then be used by include  <xdc/cfg/global.h>
 Program.global.HEAPMGR_CONFIG = HEAPMGR_CONFIG;