diff --git a/core/hdd/src/wlan_hdd_main.c b/core/hdd/src/wlan_hdd_main.c
index 9807393bc68e..157defa6d0eb 100644
--- a/core/hdd/src/wlan_hdd_main.c
+++ b/core/hdd/src/wlan_hdd_main.c
@@ -4316,14 +4316,18 @@ QDF_STATUS hdd_reset_all_adapters(hdd_context_t *hdd_ctx)
 			clear_bit(WMM_INIT_DONE, &adapter->event_flags);
 		}
 
-		/*
-		 * If adapter is SAP, set session ID to invalid since SAP
-		 * session will be cleanup during SSR.
-		 */
-		if (adapter->device_mode == QDF_SAP_MODE)
+		if (adapter->device_mode == QDF_SAP_MODE) {
+			/*
+			 * If adapter is SAP, set session ID to invalid
+			 * since SAP session will be cleanup during SSR.
+			 */
 			wlansap_set_invalid_session(
 				WLAN_HDD_GET_SAP_CTX_PTR(adapter));
 
+			wlansap_cleanup_cac_timer(
+				WLAN_HDD_GET_SAP_CTX_PTR(adapter));
+		}
+
 		/* Delete peers if any for STA and P2P client modes */
 		if (adapter->device_mode == QDF_STA_MODE ||
 		    adapter->device_mode == QDF_P2P_CLIENT_MODE) {
diff --git a/core/sap/inc/sap_api.h b/core/sap/inc/sap_api.h
index c3eb015cc873..e6cd4932b965 100644
--- a/core/sap/inc/sap_api.h
+++ b/core/sap/inc/sap_api.h
@@ -1055,6 +1055,18 @@ QDF_STATUS wlansap_set_invalid_session(void *cds_ctx);
  * Return: None
  */
 void sap_dfs_set_current_channel(void *sap_ctx);
+
+/**
+ * wlansap_cleanup_cac_timer() - Force cleanup DFS CAC timer
+ * @sap_ctx: sap context
+ *
+ * Force cleanup DFS CAC timer when reset all adapters. It will not
+ * check concurrency SAP since just called when reset all adapters.
+ *
+ * Return: None
+ */
+void wlansap_cleanup_cac_timer(void *sap_ctx);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/core/sap/src/sap_module.c b/core/sap/src/sap_module.c
index 55d2e24fd68a..2c810ea32cab 100644
--- a/core/sap/src/sap_module.c
+++ b/core/sap/src/sap_module.c
@@ -3745,3 +3745,26 @@ wlansap_set_invalid_session(void *cds_ctx)
 
 	return QDF_STATUS_SUCCESS;
 }
+
+void wlansap_cleanup_cac_timer(void *sap_ctx)
+{
+	tHalHandle hal;
+	ptSapContext psap_ctx;
+	tpAniSirGlobal pmac;
+
+	if (!sap_ctx)
+		return;
+
+	psap_ctx = CDS_GET_SAP_CB(sap_ctx);
+	hal = CDS_GET_HAL_CB(psap_ctx->p_cds_gctx);
+	pmac = PMAC_STRUCT(hal);
+	if (pmac->sap.SapDfsInfo.is_dfs_cac_timer_running) {
+		qdf_mc_timer_stop(&pmac->sap.SapDfsInfo.
+				  sap_dfs_cac_timer);
+		pmac->sap.SapDfsInfo.is_dfs_cac_timer_running = 0;
+		qdf_mc_timer_destroy(
+			&pmac->sap.SapDfsInfo.sap_dfs_cac_timer);
+		QDF_TRACE(QDF_MODULE_ID_SAP, QDF_TRACE_LEVEL_ERROR,
+			FL("sapdfs, force cleanup running dfs cac timer"));
+	}
+}