diff --git a/src/BreCalClient/App.xaml b/src/BreCalClient/App.xaml
index e74dc10..376a37a 100644
--- a/src/BreCalClient/App.xaml
+++ b/src/BreCalClient/App.xaml
@@ -2,7 +2,7 @@
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:local="clr-namespace:BreCalClient"
-             StartupUri="MainWindow.xaml" Exit="Application_Exit">
+             StartupUri="MainWindow.xaml" Exit="Application_Exit" Startup="Application_Startup" >
     <Application.Resources>
 
         <ResourceDictionary>
diff --git a/src/BreCalClient/App.xaml.cs b/src/BreCalClient/App.xaml.cs
index 191a183..c4407b8 100644
--- a/src/BreCalClient/App.xaml.cs
+++ b/src/BreCalClient/App.xaml.cs
@@ -1,4 +1,5 @@
 using BreCalClient.misc.Model;
+using BreCalClient.Properties;
 using System.Windows;
 
 namespace BreCalClient
@@ -14,5 +15,20 @@ namespace BreCalClient
         {
             BreCalClient.Properties.Settings.Default.Save();
         }
+
+        private void Application_Startup(object sender, StartupEventArgs e)
+        {
+            // Window size sanity check
+            if(Settings.Default.Width == 0)
+            {
+                Settings.Default.Width = 800;
+                Settings.Default.Save();
+            }
+            if(Settings.Default.Height == 0)
+            {
+                Settings.Default.Height = 450;
+                Settings.Default.Save();
+            }
+        }
     }
 }
diff --git a/src/BreCalClient/EditShipcallControl.xaml b/src/BreCalClient/EditShipcallControl.xaml
index d54a4d8..4e098cd 100644
--- a/src/BreCalClient/EditShipcallControl.xaml
+++ b/src/BreCalClient/EditShipcallControl.xaml
@@ -47,7 +47,7 @@
         <Label Content="ETA" Grid.Column="2" Grid.Row="2"  HorizontalContentAlignment="Right"/>
         <Label Content="ETD" Grid.Column="2" Grid.Row="3"  HorizontalContentAlignment="Right"/>
 
-        <ComboBox x:Name="comboBoxCategories" Grid.Column="3" Margin="2" Grid.Row="0" SelectedValuePath="Key" SelectionChanged="comboBoxCategories_SelectionChanged"/>
+        <ComboBox x:Name="comboBoxCategories" Grid.Column="3" Margin="2" Grid.Row="0" SelectionChanged="comboBoxCategories_SelectionChanged"/>
 
         <Label Content="{x:Static p:Resources.textBerth}" Grid.Column="2" Grid.Row="1"  HorizontalContentAlignment="Right"/>
         <Grid Grid.Row="1" Grid.Column="3">
diff --git a/src/BreCalClient/MainWindow.xaml.cs b/src/BreCalClient/MainWindow.xaml.cs
index a548370..515665a 100644
--- a/src/BreCalClient/MainWindow.xaml.cs
+++ b/src/BreCalClient/MainWindow.xaml.cs
@@ -18,9 +18,12 @@ using BreCalClient.misc.Model;
 using static BreCalClient.Extensions;
 using System.Collections.Concurrent;
 using Newtonsoft.Json;
-using System.Security.Principal;
+
+using Polly;
+using System.Net.Http;
 using System.Net;
 
+
 namespace BreCalClient
 {
     /// <summary>
@@ -35,8 +38,7 @@ namespace BreCalClient
         #region Fields
 
         private static Int32 _uiUpdateRunning = 0;
-
-        private Timer? _timer;
+        
         private Credentials? _credentials;
 
         private readonly ConcurrentDictionary<int, ShipcallControlModel> _allShipcallsDict = new();
@@ -87,7 +89,29 @@ namespace BreCalClient
             _staticApi = new StaticApi(Properties.Settings.Default.API_URL);
             _staticApi.Configuration.ApiKeyPrefix["Authorization"] = "Bearer";
             _shipApi = new ShipApi(Properties.Settings.Default.API_URL);
-            _shipApi.Configuration.ApiKeyPrefix["Authorization"] = "Bearer";
+            _shipApi.Configuration.ApiKeyPrefix["Authorization"] = "Bearer";            
+
+            const int maxDelayInMilliseconds = 32 * 1000;
+            var jitterer = new Random();
+
+            var retryPolicy = 
+                Policy.Handle<HttpRequestException>()
+                .OrResult<RestSharp.RestResponse>(resp => resp.StatusCode == HttpStatusCode.Unauthorized)
+                .WaitAndRetryAsync(3, 
+                retryAttempt =>
+                {
+                    var calculatedDelayInMilliseconds = Math.Pow(2, retryAttempt) * 1000;
+                    var jitterInMilliseconds = jitterer.Next(0, 1000);
+
+                    var actualDelay = Math.Min(calculatedDelayInMilliseconds + jitterInMilliseconds, maxDelayInMilliseconds);
+                    return TimeSpan.FromMilliseconds(actualDelay);
+                },
+                onRetry: (resp, timespan, context) =>
+                {
+                    this.RefreshToken(null);
+                    Trace.WriteLine("token refreshed");
+                });
+            RetryConfiguration.AsyncRetryPolicy = retryPolicy;
         }
 
         #endregion
@@ -141,8 +165,7 @@ namespace BreCalClient
                         this._staticApi.Configuration.ApiKey["Authorization"] = _loginResult.Token;
                         this._shipApi.Configuration.ApiKey["Authorization"] = _loginResult.Token;
                         this.LoadStaticLists();
-                        this.labelUsername.Text = $"{_loginResult.FirstName} {_loginResult.LastName}";
-                        _timer = new Timer(RefreshToken, null, 4000000, Timeout.Infinite);
+                        this.labelUsername.Text = $"{_loginResult.FirstName} {_loginResult.LastName}";                        
                     }
                 }
                 labelGeneralStatus.Text = $"Connection {ConnectionStatus.SUCCESSFUL}";
@@ -168,8 +191,9 @@ namespace BreCalClient
             }
         }
 
-        private void RefreshToken(object? state)
+        private bool RefreshToken(object? state)
         {
+            bool result = false;
             try
             {
                 _loginResult = _userApi.Login(_credentials);
@@ -181,8 +205,9 @@ namespace BreCalClient
                         this._timesApi.Configuration.ApiKey["Authorization"] = _loginResult.Token;
                         this._shipcallApi.Configuration.ApiKey["Authorization"] = _loginResult.Token;
                         this._staticApi.Configuration.ApiKey["Authorization"] = _loginResult.Token;
-                        this._shipApi.Configuration.ApiKey["Authorization"] = _loginResult.Token;
-                    }
+                        this._shipApi.Configuration.ApiKey["Authorization"] = _loginResult.Token;                        
+                        result = true;
+                    }                    
                 }
                 else
                 {
@@ -193,6 +218,7 @@ namespace BreCalClient
             {
                 _log.ErrorFormat("Error refreshing token: {0}", ex.Message);
             }
+            return result;
         }
 
         private void buttonExit_Click(object sender, RoutedEventArgs e)
@@ -835,10 +861,13 @@ namespace BreCalClient
 
         private void ShowErrorDialog(string message, string caption)
         {
+            _log.ErrorFormat("{0} - {1}", caption, message);
+            /*
             Dispatcher.Invoke(new Action(() =>
             {
                 MessageBox.Show(message, caption, MessageBoxButton.OK, MessageBoxImage.Error);
             }));
+            */
         }
 
         private void EnableControlsForParticipant()
diff --git a/src/BreCalClient/Resources/Resources.de.resx b/src/BreCalClient/Resources/Resources.de.resx
index 9f67bf3..4b9f54d 100644
--- a/src/BreCalClient/Resources/Resources.de.resx
+++ b/src/BreCalClient/Resources/Resources.de.resx
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
-  <!-- 
-    Microsoft ResX Schema 
-    
+  <!--
+    Microsoft ResX Schema
+
     Version 2.0
-    
-    The primary goals of this format is to allow a simple XML format 
-    that is mostly human readable. The generation and parsing of the 
-    various data types are done through the TypeConverter classes 
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
     associated with the data types.
-    
+
     Example:
-    
+
     ... ado.net/XML headers & schema ...
     <resheader name="resmimetype">text/microsoft-resx</resheader>
     <resheader name="version">2.0</resheader>
@@ -26,36 +26,36 @@
         <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
         <comment>This is a comment</comment>
     </data>
-                
-    There are any number of "resheader" rows that contain simple 
+
+    There are any number of "resheader" rows that contain simple
     name/value pairs.
-    
-    Each data row contains a name, and value. The row also contains a 
-    type or mimetype. Type corresponds to a .NET class that support 
-    text/value conversion through the TypeConverter architecture. 
-    Classes that don't support this are serialized and stored with the 
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
     mimetype set.
-    
-    The mimetype is used for serialized objects, and tells the 
-    ResXResourceReader how to depersist the object. This is currently not 
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
     extensible. For a given mimetype the value must be set accordingly:
-    
-    Note - application/x-microsoft.net.object.binary.base64 is the format 
-    that the ResXResourceWriter will generate, however the reader can 
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
     read any of the formats listed below.
-    
+
     mimetype: application/x-microsoft.net.object.binary.base64
-    value   : The object must be serialized with 
+    value   : The object must be serialized with
             : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
             : and then encoded with base64 encoding.
-    
+
     mimetype: application/x-microsoft.net.object.soap.base64
-    value   : The object must be serialized with 
+    value   : The object must be serialized with
             : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
             : and then encoded with base64 encoding.
 
     mimetype: application/x-microsoft.net.object.bytearray.base64
-    value   : The object must be serialized into a byte array 
+    value   : The object must be serialized into a byte array
             : using a System.ComponentModel.TypeConverter
             : and then encoded with base64 encoding.
     -->
@@ -284,10 +284,10 @@
     <value>Neues Passwort wiederholen</value>
   </data>
   <data name="textReplenishingLock" xml:space="preserve">
-    <value>Versorgungsaufnahme Schleuse</value>
+    <value>Güterübernahme in der Schleuse geplant</value>
   </data>
   <data name="textReplenishingTerminal" xml:space="preserve">
-    <value>Versorgungsaufnahme Terminal</value>
+    <value>Güterübernahme am Terminal geplant</value>
   </data>
   <data name="textRotated" xml:space="preserve">
     <value>Gedreht</value>
diff --git a/src/server/BreCal/impl/berths.py b/src/server/BreCal/impl/berths.py
index e6b8d32..9087856 100644
--- a/src/server/BreCal/impl/berths.py
+++ b/src/server/BreCal/impl/berths.py
@@ -14,7 +14,7 @@ def GetBerths(token):
         pooledConnection = local_db.getPoolConnection()
         commands = pydapper.using(pooledConnection)
         data = commands.query("SELECT id, name, `lock`, owner_id, authority_id, created, modified, deleted FROM berth WHERE deleted = 0 ORDER BY name", model=model.Berth)
-        pooledConnection.close()
+        return json.dumps(data, default=model.obj_dict), 200, {'Content-Type': 'application/json; charset=utf-8'}
 
     except Exception as ex:
         logging.error(ex)
@@ -23,7 +23,9 @@ def GetBerths(token):
         result["message"] = "call failed"
         return json.dumps(result), 500
 
-    return json.dumps(data, default=model.obj_dict), 200, {'Content-Type': 'application/json; charset=utf-8'}
+    finally:
+        if pooledConnection is not None:
+            pooledConnection.close()
 
 
 
diff --git a/src/server/BreCal/impl/login.py b/src/server/BreCal/impl/login.py
index 5f1847b..cbcf864 100644
--- a/src/server/BreCal/impl/login.py
+++ b/src/server/BreCal/impl/login.py
@@ -16,7 +16,6 @@ def GetUser(options):
             commands = pydapper.using(pooledConnection)
             data = commands.query("SELECT id, participant_id, first_name, last_name, user_name, user_email, user_phone, password_hash, api_key, created, modified FROM user WHERE user_name = ?username? OR user_email = ?username?",
                                   model=model.User, param={"username" : options["username"]})
-            pooledConnection.close()
             # print(data)
             if len(data) == 1:
                 if bcrypt.checkpw(options["password"].encode("utf-8"), bytes(data[0].password_hash, "utf-8")):
@@ -49,6 +48,10 @@ def GetUser(options):
         result["message"] = "call failed: " + str(ex)
         return json.dumps(result), 500, {'Content-Type': 'application/json; charset=utf-8'}
 
+    finally:
+        if pooledConnection is not None:
+            pooledConnection.close()
+
 # $2b$12$uWLE0r32IrtCV30WkMbVwOdltgeibymZyYAf4ZnQb2Bip8hrkGGwG
 # $2b$12$.vEapj9xU8z0RK0IpIGeYuRIl0ktdMt4XdJQBhVn.3K2hmvm7qD3y
 # $2b$12$yL3PiseU70ciwEuMVM4OtuMwR6tNuIT9vvBiBG/uyMrPxa16E2Zqu
\ No newline at end of file
diff --git a/src/server/BreCal/impl/participant.py b/src/server/BreCal/impl/participant.py
index 05937d4..aad0def 100644
--- a/src/server/BreCal/impl/participant.py
+++ b/src/server/BreCal/impl/participant.py
@@ -19,7 +19,8 @@ def GetParticipant(options):
             data = commands.query("SELECT p.id as id, p.name as name, p.street as street, p.postal_code as postal_code, p.city as city, p.type as type, p.flags as flags, p.created as created, p.modified as modified, p.deleted as deleted FROM  participant p INNER JOIN user u WHERE u.participant_id = p.id and u.id = ?userid?", model=model.Participant, param={"userid" : options["user_id"]})
         else:
             data = commands.query("SELECT id, name, street, postal_code, city, type, flags, created, modified, deleted FROM participant p ORDER BY p.name", model=model.Participant)
-        pooledConnection.close()
+
+        return json.dumps(data, default=model.obj_dict), 200, {'Content-Type': 'application/json; charset=utf-8'}
 
     except Exception as ex:
         logging.error(ex)
@@ -28,5 +29,7 @@ def GetParticipant(options):
         result["message"] = "call failed"
         return json.dumps("call failed"), 500
 
-    return json.dumps(data, default=model.obj_dict), 200, {'Content-Type': 'application/json; charset=utf-8'}
+    finally:
+        if pooledConnection is not None:
+            pooledConnection.close()
 
diff --git a/src/server/BreCal/impl/shipcalls.py b/src/server/BreCal/impl/shipcalls.py
index 47fb9d0..fd222a7 100644
--- a/src/server/BreCal/impl/shipcalls.py
+++ b/src/server/BreCal/impl/shipcalls.py
@@ -18,11 +18,20 @@ def GetShipcalls(options):
 
         pooledConnection = local_db.getPoolConnection()
         commands = pydapper.using(pooledConnection)
-        query = ("SELECT id, ship_id, type, eta, voyage, etd, arrival_berth_id, departure_berth_id, tug_required, pilot_required, "
-                "flags, pier_side, bunkering, replenishing_terminal, replenishing_lock, draft, tidal_window_from, tidal_window_to, rain_sensitive_cargo, recommended_tugs, "
-                "anchored, moored_lock, canceled, evaluation, evaluation_message, evaluation_time, evaluation_notifications_sent, created, modified FROM shipcall WHERE ((type = 1 OR type = 3) AND eta >= DATE(NOW() - INTERVAL %d DAY)"
-                "OR (type = 2 AND etd >= DATE(NOW() - INTERVAL %d DAY))) "
-                "ORDER BY eta") % (options["past_days"], options["past_days"])
+        query = ("SELECT s.id as id, ship_id, type, eta, voyage, etd, arrival_berth_id, departure_berth_id, tug_required, pilot_required, " +
+		"flags, s.pier_side, bunkering, replenishing_terminal, replenishing_lock, draft, tidal_window_from, " +
+        "tidal_window_to, rain_sensitive_cargo, recommended_tugs, anchored, moored_lock, canceled, evaluation, " +
+        "evaluation_message, evaluation_time, evaluation_notifications_sent, s.created as created, s.modified as modified " +
+        "FROM shipcall s " +
+        "LEFT JOIN times t ON t.shipcall_id = s.id AND t.participant_type = 8 " +
+        "WHERE " +
+        "(type = 1 AND  " +
+        "((t.id IS NOT NULL AND t.eta_berth >= DATE(NOW() - INTERVAL %d DAY)) OR " +
+        "(eta >= DATE(NOW() - INTERVAL %d DAY)))) OR " +
+        "((type = 2 OR type = 3) AND " +
+        "((t.id IS NOT NULL AND t.etd_berth >= DATE(NOW() - INTERVAL %d DAY)) OR " +
+        "(etd >= DATE(NOW() - INTERVAL %d DAY)))) " +
+        "ORDER BY eta") % (options["past_days"], options["past_days"], options["past_days"], options["past_days"])
 
         data = commands.query(query, model=model.Shipcall)
         for shipcall in data:
@@ -32,7 +41,7 @@ def GetShipcalls(options):
                 pa = model.Participant_Assignment(record["participant_id"], record["type"])
                 shipcall.participants.append(pa)
 
-        pooledConnection.close()
+        return json.dumps(data, default=model.obj_dict), 200, {'Content-Type': 'application/json; charset=utf-8'}
 
     except Exception as ex:
         logging.error(traceback.format_exc())
@@ -42,7 +51,9 @@ def GetShipcalls(options):
         result["message"] = "call failed"
         return json.dumps(result), 500, {'Content-Type': 'application/json; charset=utf-8'}
 
-    return json.dumps(data, default=model.obj_dict), 200, {'Content-Type': 'application/json; charset=utf-8'}
+    finally:
+        if pooledConnection is not None:
+            pooledConnection.close()
 
 
 def PostShipcalls(schemaModel):
@@ -116,8 +127,6 @@ def PostShipcalls(schemaModel):
         query = "INSERT INTO history (participant_id, shipcall_id, user_id, timestamp, eta, type, operation) VALUES (?pid?, ?scid?, ?uid?, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP, 1, 1)"
         commands.execute_scalar(query, {"scid" : new_id, "pid" : user_data["participant_id"], "uid" : user_data["id"]})
 
-        pooledConnection.close()
-
         return json.dumps({"id" : new_id}), 201, {'Content-Type': 'application/json; charset=utf-8'}
 
     except Exception as ex:
@@ -128,6 +137,10 @@ def PostShipcalls(schemaModel):
         result["message"] = "call failed"
         return json.dumps(result), 500, {'Content-Type': 'application/json; charset=utf-8'}
 
+    finally:
+        if pooledConnection is not None:
+            pooledConnection.close()
+
 
 def PutShipcalls(schemaModel):
     """
@@ -207,8 +220,6 @@ def PutShipcalls(schemaModel):
         query = "INSERT INTO history (participant_id, shipcall_id, user_id, timestamp, eta, type, operation) VALUES (?pid?, ?scid?, ?uid?, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP, 1, 2)"
         commands.execute(query, {"scid" : schemaModel["id"], "pid" : user_data["participant_id"], "uid" : user_data["id"]})
 
-        pooledConnection.close()
-
         return json.dumps({"id" : schemaModel["id"]}), 200
 
     except Exception as ex:
@@ -219,5 +230,7 @@ def PutShipcalls(schemaModel):
         result["message"] = "call failed"
         return json.dumps(result), 500, {'Content-Type': 'application/json; charset=utf-8'}
 
-
+    finally:
+        if pooledConnection is not None:
+            pooledConnection.close()
 
diff --git a/src/server/BreCal/impl/ships.py b/src/server/BreCal/impl/ships.py
index 485a8e1..b0b0b94 100644
--- a/src/server/BreCal/impl/ships.py
+++ b/src/server/BreCal/impl/ships.py
@@ -15,7 +15,8 @@ def GetShips(token):
         pooledConnection = local_db.getPoolConnection()
         commands = pydapper.using(pooledConnection)
         data = commands.query("SELECT id, name, imo, callsign, participant_id, length, width, is_tug, bollard_pull, eni, created, modified, deleted FROM ship ORDER BY name", model=model.Ship)
-        pooledConnection.close()
+
+        return json.dumps(data, default=model.obj_dict), 200, {'Content-Type': 'application/json; charset=utf-8'}
 
     except Exception as ex:
         logging.error(ex)
@@ -24,7 +25,10 @@ def GetShips(token):
         result["message"] = "call failed"
         return json.dumps(result), 500, {'Content-Type': 'application/json; charset=utf-8'}
 
-    return json.dumps(data, default=model.obj_dict), 200, {'Content-Type': 'application/json; charset=utf-8'}
+    finally:
+        if pooledConnection is not None:
+            pooledConnection.close()
+
 
 
 
diff --git a/src/server/BreCal/impl/times.py b/src/server/BreCal/impl/times.py
index f7a3253..1ef0d37 100644
--- a/src/server/BreCal/impl/times.py
+++ b/src/server/BreCal/impl/times.py
@@ -90,8 +90,6 @@ def PostTimes(schemaModel):
         query = "INSERT INTO history (participant_id, shipcall_id, user_id, timestamp, eta, type, operation) VALUES (?pid?, ?scid?, ?uid?, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP, 2, 1)"
         commands.execute_scalar(query, {"scid" : schemaModel["shipcall_id"], "pid" : user_data["participant_id"], "uid" : user_data["id"]})
 
-        pooledConnection.close()
-
         return json.dumps({"id" : new_id}), 201, {'Content-Type': 'application/json; charset=utf-8'}
 
     except Exception as ex:
@@ -101,6 +99,10 @@ def PostTimes(schemaModel):
         result["message"] = "call failed"
         return json.dumps(result), 500, {'Content-Type': 'application/json; charset=utf-8'}
 
+    finally:
+        if pooledConnection is not None:
+            pooledConnection.close()
+
 
 def PutTimes(schemaModel):
     """
@@ -141,14 +143,10 @@ def PutTimes(schemaModel):
         query = "INSERT INTO history (participant_id, shipcall_id, user_id, timestamp, eta, type, operation) VALUES (?pid?, ?scid?, ?uid?, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP, 2, 2)"
         commands.execute_scalar(query, {"scid" : schemaModel["shipcall_id"], "pid" : user_data["participant_id"], "uid" : user_data["id"]})
 
-        pooledConnection.close()
-
         # if affected_rows == 1: # this doesn't work as expected
 
         return json.dumps({"id" : schemaModel["id"]}), 200, {'Content-Type': 'application/json; charset=utf-8'}
 
-        # return json.dumps("no such record"), 404, {'Content-Type': 'application/json; charset=utf-8'}
-
     except Exception as ex:
         logging.error(ex)
         print(ex)
@@ -156,6 +154,10 @@ def PutTimes(schemaModel):
         result["message"] = "call failed"
         return json.dumps(result), 500, {'Content-Type': 'application/json; charset=utf-8'}
 
+    finally:
+        if pooledConnection is not None:
+            pooledConnection.close()
+
 def DeleteTimes(options):
     """
     :param options: A dictionary containing all the paramters for the Operations
@@ -176,8 +178,6 @@ def DeleteTimes(options):
         query = "INSERT INTO history (participant_id, shipcall_id, user_id, timestamp, eta, type, operation) VALUES (?pid?, 0, ?uid?, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP, 2, 3)"
         commands.execute_scalar(query, {"pid" : user_data["participant_id"], "uid" : user_data["id"]})
 
-        pooledConnection.close()
-
         if affected_rows == 1:
             return json.dumps({"id" : options["id"]}), 200, {'Content-Type': 'application/json; charset=utf-8'}
 
@@ -190,4 +190,8 @@ def DeleteTimes(options):
         print(ex)
         result = {}
         result["message"] = "call failed"
-        return json.dumps(result), 500, {'Content-Type': 'application/json; charset=utf-8'}
\ No newline at end of file
+        return json.dumps(result), 500, {'Content-Type': 'application/json; charset=utf-8'}
+
+    finally:
+        if pooledConnection is not None:
+            pooledConnection.close()
\ No newline at end of file
diff --git a/src/server/BreCal/impl/user.py b/src/server/BreCal/impl/user.py
index 699e4bf..cd79f89 100644
--- a/src/server/BreCal/impl/user.py
+++ b/src/server/BreCal/impl/user.py
@@ -56,8 +56,6 @@ def PutUser(schemaModel):
                     result["message"] = "old password invalid"
                     return json.dumps(result), 400, {'Content-Type': 'application/json; charset=utf-8'}
 
-        pooledConnection.close()
-
         return json.dumps({"id" : schemaModel["id"]}), 200
 
     except Exception as ex:
@@ -67,5 +65,8 @@ def PutUser(schemaModel):
         result["message"] = "call failed"
         return json.dumps(result), 500, {'Content-Type': 'application/json; charset=utf-8'}
 
+    finally:
+        if pooledConnection is not None:
+            pooledConnection.close()