diff --git a/asibfm700_configfile.h b/asibfm700_configfile.h
index 8dcb15b..695ed63 100644
--- a/asibfm700_configfile.h
+++ b/asibfm700_configfile.h
@@ -386,7 +386,10 @@ public:
         return static_cast<double>(getValue<mcc::impl::MccAngle>("siteLatitude").value_or(mcc::impl::MccAngle{}));
     };
 
-    mcc::impl::MccAngle siteLatitude() const { return siteLatitude<mcc::impl::MccAngle>(); };
+    mcc::impl::MccAngle siteLatitude() const
+    {
+        return siteLatitude<mcc::impl::MccAngle>();
+    };
 
     template <mcc::mcc_angle_c T>
     T siteLongitude() const
@@ -394,7 +397,10 @@ public:
         return static_cast<double>(getValue<mcc::impl::MccAngle>("siteLongitude").value_or(mcc::impl::MccAngle{}));
     };
 
-    mcc::impl::MccAngle siteLongitude() const { return siteLongitude<mcc::impl::MccAngle>(); };
+    mcc::impl::MccAngle siteLongitude() const
+    {
+        return siteLongitude<mcc::impl::MccAngle>();
+    };
 
     template <typename T>
     T siteElevation() const
@@ -403,7 +409,10 @@ public:
         return getValue<double>("siteElevation").value_or(0.0);
     }
 
-    double siteElevation() const { return getValue<double>("siteElevation").value_or(0.0); };
+    double siteElevation() const
+    {
+        return getValue<double>("siteElevation").value_or(0.0);
+    };
 
     template <typename T>
     T refractWavelength() const
@@ -412,7 +421,10 @@ public:
         return getValue<double>("refractWavelength").value_or(0.0);
     }
 
-    double refractWavelength() const { return getValue<double>("refractWavelength").value_or(0.0); };
+    double refractWavelength() const
+    {
+        return getValue<double>("refractWavelength").value_or(0.0);
+    };
 
     template <mcc::traits::mcc_output_char_range R>
     R leapSecondFilename() const
@@ -425,7 +437,10 @@ public:
         return r;
     }
 
-    std::string leapSecondFilename() const { return leapSecondFilename<std::string>(); };
+    std::string leapSecondFilename() const
+    {
+        return leapSecondFilename<std::string>();
+    };
 
     template <mcc::traits::mcc_output_char_range R>
     R bulletinAFilename() const
@@ -437,7 +452,10 @@ public:
         return r;
     }
 
-    std::string bulletinAFilename() const { return bulletinAFilename<std::string>(); };
+    std::string bulletinAFilename() const
+    {
+        return bulletinAFilename<std::string>();
+    };
 
 
     template <mcc::mcc_angle_c T>
@@ -446,7 +464,10 @@ public:
         return static_cast<double>(getValue<mcc::impl::MccAngle>("pzMinAltitude").value_or(mcc::impl::MccAngle{}));
     };
 
-    mcc::impl::MccAngle pzMinAltitude() const { return pzMinAltitude<mcc::impl::MccAngle>(); };
+    mcc::impl::MccAngle pzMinAltitude() const
+    {
+        return pzMinAltitude<mcc::impl::MccAngle>();
+    };
 
     template <mcc::mcc_angle_c T>
     T pzLimitSwitchHAMin() const
@@ -454,7 +475,10 @@ public:
         return static_cast<double>(getValue<mcc::impl::MccAngle>("pzLimitSwitchHAMin").value_or(mcc::impl::MccAngle{}));
     };
 
-    mcc::impl::MccAngle pzLimitSwitchHAMin() const { return pzLimitSwitchHAMin<mcc::impl::MccAngle>(); };
+    mcc::impl::MccAngle pzLimitSwitchHAMin() const
+    {
+        return pzLimitSwitchHAMin<mcc::impl::MccAngle>();
+    };
 
     template <mcc::mcc_angle_c T>
     T pzLimitSwitchHAMax() const
@@ -462,7 +486,10 @@ public:
         return static_cast<double>(getValue<mcc::impl::MccAngle>("pzLimitSwitchHAMax").value_or(mcc::impl::MccAngle{}));
     };
 
-    mcc::impl::MccAngle pzLimitSwitchHAMax() const { return pzLimitSwitchHAMax<mcc::impl::MccAngle>(); };
+    mcc::impl::MccAngle pzLimitSwitchHAMax() const
+    {
+        return pzLimitSwitchHAMax<mcc::impl::MccAngle>();
+    };
 
 
     AsibFM700ServoController::hardware_config_t servoControllerConfig() const
@@ -771,11 +798,23 @@ public:
             } catch (...) {
                 ec = std::make_error_code(std::errc::operation_canceled);
             }
+
+            _lastConfigPath = path;
         }
 
         return ec;
     }
 
+    std::error_code reloadCurrentConfig()
+    {
+        return load(_lastConfigPath);
+    }
+
+    std::filesystem::path configFilename() const
+    {
+        return _lastConfigPath;
+    }
+
     bool dumpDefaultsToFile(const std::filesystem::path& path)
     {
         std::ofstream fst(path);
@@ -840,6 +879,9 @@ public:
 
         return true;
     };
+
+protected:
+    std::filesystem::path _lastConfigPath{};
 };
 
 
diff --git a/asibfm700_mount.cpp b/asibfm700_mount.cpp
index 37c3650..8fbfec3 100644
--- a/asibfm700_mount.cpp
+++ b/asibfm700_mount.cpp
@@ -372,7 +372,8 @@ Asibfm700Mount::error_t Asibfm700Mount::updateMountConfig(const Asibfm700MountCo
 Asibfm700Mount::error_t Asibfm700Mount::updateMountConfig(const std::string& cfg_filename)
 {
     Asibfm700MountConfig new_config;
-    auto err = new_config.load(cfg_filename);
+    auto err =
+        new_config.load(cfg_filename.empty() ? _mountConfig.configFilename() : std::filesystem::path{cfg_filename});
     if (err) {
         return mcc::mcc_deduced_err(err, std::make_error_code(std::errc::file_exists));
     }
@@ -775,7 +776,7 @@ Asibfm700Mount::error_t Asibfm700Mount::slewingImpl(bool slew_and_stop)
 
     if (!_lastMountError->load() && !_stopMovementRequest->load()) {  // do not start tracking if an error occured
         if (!slew_and_stop) {                                         // or stop requested
-//            return trackTarget();
+                                                                      //            return trackTarget();
             return trackingImpl();
         }
     } else {
diff --git a/asibfm700_mount.h b/asibfm700_mount.h
index 5fc0dde..f6d3858 100644
--- a/asibfm700_mount.h
+++ b/asibfm700_mount.h
@@ -63,7 +63,7 @@ public:
     error_t initMount();
 
     error_t updateMountConfig(Asibfm700MountConfig const&);
-    error_t updateMountConfig(std::string const&);
+    error_t updateMountConfig(std::string const& = std::string{});  // new filename
     Asibfm700MountConfig currentMountConfig();
 
     // redefined method
diff --git a/asibfm700_netserver.cpp b/asibfm700_netserver.cpp
index 61f588c..c0d3c36 100644
--- a/asibfm700_netserver.cpp
+++ b/asibfm700_netserver.cpp
@@ -57,18 +57,20 @@ Asibfm700MountNetServer::Asibfm700MountNetServer(asio::io_context& ctx,
                 output_msg.construct(mcc::network::MCC_COMMPROTO_KEYWORD_SERVER_ACK_STR,
                                      ASIBFM700_COMMPROTO_KEYWORD_SITEGEO_STR, lon, lat);
             } else if (input_msg.withKey(ASIBFM700_COMMPROTO_KEYWORD_RELOADCFG_STR)) {
-                if (input_msg.paramSize()) {
-                    auto vp = input_msg.paramValue<std::string>(0);
-                    auto err = mount_ptr->updateMountConfig(vp.value());
-                    if (err) {
-                        output_msg.construct(mcc::network::MCC_COMMPROTO_KEYWORD_SERVER_ERROR_STR, err);
-                    } else {
-                        output_msg.construct(mcc::network::MCC_COMMPROTO_KEYWORD_SERVER_ACK_STR,
-                                             ASIBFM700_COMMPROTO_KEYWORD_RELOADCFG_STR);
-                    }
-                } else {  // a filename must be given
-                    output_msg.construct(mcc::network::MCC_COMMPROTO_KEYWORD_SERVER_ERROR_STR,
-                                         std::make_error_code(std::errc::invalid_argument));
+                Asibfm700Mount::error_t err;
+
+                auto vp = input_msg.paramValue<std::string>(0);
+                if (vp) {  // filename is given
+                    err = mount_ptr->updateMountConfig(vp.value());
+                } else {  // reload with previous filename
+                    err = mount_ptr->updateMountConfig();
+                }
+
+                if (err) {
+                    output_msg.construct(mcc::network::MCC_COMMPROTO_KEYWORD_SERVER_ERROR_STR, err);
+                } else {
+                    output_msg.construct(mcc::network::MCC_COMMPROTO_KEYWORD_SERVER_ACK_STR,
+                                         ASIBFM700_COMMPROTO_KEYWORD_RELOADCFG_STR);
                 }
             } else {
                 // basic network message processing