diff --git a/src/terminal_api_driver.cpp b/src/terminal_api_driver.cpp
index 39e3c8c..879663b 100644
--- a/src/terminal_api_driver.cpp
+++ b/src/terminal_api_driver.cpp
@@ -210,8 +210,9 @@ public:
     void setStrringsCinc(bool readback = true) {}
 
     void setStrringsBucLnb(const buc_lnb_settings& bucLnb, bool readback = true) {
-        std::lock_guard lock(this->cpApiMutex);
         buc_lnb_settings tmp = bucLnb;
+        std::lock_guard lock(this->cpApiMutex);
+        CP_SetDmaDebug(sid, "begin_save_config", "");
         CP_SetBUC_LNB_settings(this->sid, tmp);
         if (readback) {
             CP_GetBUC_LNB_settings(this->sid, tmp);
@@ -220,10 +221,12 @@ public:
                 this->bucLnbSettings = tmp;
             }
         }
+        CP_SetDmaDebug(sid, "save_config", "");
     }
 
     void setQosSettings(bool enabled, const std::string& str, bool readback = true) {
         std::lock_guard lock(this->cpApiMutex);
+        CP_SetDmaDebug(sid, "begin_save_config", "");
         CP_SetQoSSettings(this->sid, str, enabled);
         if (readback) {
             bool tmp1; std::string tmp2;
@@ -234,6 +237,7 @@ public:
                 this->qosClassesJson = tmp2;
             }
         }
+        CP_SetDmaDebug(sid, "save_config", "");
     }
 
     ~TerminalApiDaemon() {