diff --git a/AssemblyInfo.cs b/AssemblyInfo.cs
index 9f9720d..93b5d8c 100644
--- a/AssemblyInfo.cs
+++ b/AssemblyInfo.cs
@@ -29,5 +29,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.5.4.0")]
-[assembly: AssemblyFileVersion("1.5.4.0")]
+[assembly: AssemblyVersion("1.5.6.0")]
+[assembly: AssemblyFileVersion("1.5.6.0")]
diff --git a/XESmartTarget.Core/Target.cs b/XESmartTarget.Core/Target.cs
index 40aaef6..a6e2b1d 100644
--- a/XESmartTarget.Core/Target.cs
+++ b/XESmartTarget.Core/Target.cs
@@ -140,34 +140,63 @@ internal void Process()
 
                 bool connectedOnce = false;
                 bool shouldContinue = true;
+                int attempts = 0;
+
+                QueryableXEventData eventStream = null;
 
-                
                 while (shouldContinue)
                 {
                     try
                     {
-                        QueryableXEventData eventStream = ConnectSessionStream(ConnectionString);
+                        if(attempts < 240) attempts++; // connect attempts will be at least every 1 hour (240 * 15 sec = 3600 sec = 1 hour)
+
+                        eventStream = ConnectSessionStream(ConnectionString);
                         connectedOnce = true;
-                        logger.Info($"Connected to {ServerName}.");
-                        ProcessStreamData(eventStream);
+                        attempts = 0;
+                        logger.Info($"Connected to '{ServerName}'.");
                     }
                     catch (Exception e)
                     {
-                        logger.Error(e, ServerName);
-                        if (FailOnProcessingError)
+                        if(attempts == 1)
                         {
-                            throw;
+                            logger.Error($"Error connecting to '{ServerName}'");
+                            logger.Error(e.InnerException ?? e);
                         }
                         else
                         {
-                            int? errNumber = (e.InnerException as SqlException)?.Number;
-                            if ((errNumber == 25727 || errNumber == 25728)
-                                && connectedOnce)
+                            string msg = e.Message;
+                            if (e.InnerException != null)
                             {
-                                shouldContinue = true;
-                                Thread.Sleep(15000); // sleep 15 seconds and reconnect
+                                msg = e.InnerException.Message;
                             }
+                            logger.Error($"Error connecting to '{ServerName}', attempt {attempts}");
+                            logger.Error(msg);
+                        }
 
+                        if (FailOnProcessingError)
+                        {
+                            throw;
+                        }
+                        else
+                        {
+                            Thread.Sleep(attempts * 15000); // linear reconnect backoff
+                            continue;
+                        }
+                    }
+                    try
+                    {
+                        ProcessStreamData(eventStream);
+                    }
+                    catch(Exception e)
+                    {
+                        logger.Error($"Error processing event data from '{ServerName}'");
+                        logger.Error(e);
+                        if (FailOnProcessingError)
+                        {
+                            eventStream.Dispose();
+                            throw;
+                        }
+                        else {
                             shouldContinue = connectedOnce;
                         }
                     }
@@ -229,7 +258,6 @@ private QueryableXEventData ConnectSessionStream(string connectionString)
                 catch (Exception e)
                 {
                     var ioe = new InvalidOperationException($"Unable to connect to the Extended Events session {SessionName} on server {ServerName}", e);
-                    logger.Error(ioe);
                     throw ioe;
                 }
 
diff --git a/XESmartTarget.Core/XESmartTarget.Core.csproj b/XESmartTarget.Core/XESmartTarget.Core.csproj
index c8f75c9..b7486ad 100644
--- a/XESmartTarget.Core/XESmartTarget.Core.csproj
+++ b/XESmartTarget.Core/XESmartTarget.Core.csproj
@@ -170,7 +170,10 @@
       <Version>13.0.3</Version>
     </PackageReference>
     <PackageReference Include="NLog">
-      <Version>4.4.12</Version>
+      <Version>4.7.15</Version>
+    </PackageReference>
+    <PackageReference Include="NLog.Config">
+      <Version>4.7.15</Version>
     </PackageReference>
     <PackageReference Include="SmartFormat.NET">
       <Version>2.1.0.2</Version>
diff --git a/XESmartTarget/NLog.config b/XESmartTarget/NLog.config
index 96183fd..7d4d716 100644
--- a/XESmartTarget/NLog.config
+++ b/XESmartTarget/NLog.config
@@ -8,8 +8,15 @@
 
 
   <targets>
-    <target name="logfile" xsi:type="File" fileName="XESmartTarget.log" layout="${longdate} - ${level} - ${logger} : ${message}" />
-    <target name="console" xsi:type="Console" layout="${level} - ${logger} : ${message}"/>
+    <target name="logfile" 
+            xsi:type="File" 
+            fileName="XESmartTarget.${shortdate}.log" 
+            layout="${longdate} - ${level} - ${logger} : ${message}" 
+            archiveAboveSize="5242880"
+            maxArchiveFiles="3" />
+    <target name="console" 
+            xsi:type="Console" 
+            layout="${level} - ${logger} : ${message}"/>
   </targets>
 
   <rules>
diff --git a/XESmartTarget/XESmartTarget.csproj b/XESmartTarget/XESmartTarget.csproj
index 7be6874..55b49f8 100644
--- a/XESmartTarget/XESmartTarget.csproj
+++ b/XESmartTarget/XESmartTarget.csproj
@@ -136,7 +136,7 @@
       <Version>2.9.1</Version>
     </PackageReference>
     <PackageReference Include="NLog.Config">
-      <Version>4.4.12</Version>
+      <Version>4.7.15</Version>
     </PackageReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
diff --git a/XelToCsv/XelToCsv.csproj b/XelToCsv/XelToCsv.csproj
index 97d4c60..8512100 100644
--- a/XelToCsv/XelToCsv.csproj
+++ b/XelToCsv/XelToCsv.csproj
@@ -76,17 +76,22 @@
       <HintPath>..\packages\CommandLineParser.2.9.1\lib\net461\CommandLine.dll</HintPath>
     </Reference>
     <Reference Include="NLog, Version=4.0.0.0, Culture=neutral, PublicKeyToken=5120e14c03d0593c, processorArchitecture=MSIL">
-      <HintPath>..\packages\NLog.4.4.12\lib\net45\NLog.dll</HintPath>
+      <HintPath>..\packages\NLog.4.7.15\lib\net45\NLog.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.Composition" />
+    <Reference Include="System.Configuration" />
     <Reference Include="System.Console, Version=4.0.1.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>..\packages\System.Console.4.3.1\lib\net46\System.Console.dll</HintPath>
     </Reference>
     <Reference Include="System.Core" />
+    <Reference Include="System.IO.Compression" />
     <Reference Include="System.Reflection.TypeExtensions, Version=4.1.5.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>..\packages\System.Reflection.TypeExtensions.4.7.0\lib\net461\System.Reflection.TypeExtensions.dll</HintPath>
     </Reference>
+    <Reference Include="System.Runtime.Serialization" />
+    <Reference Include="System.ServiceModel" />
+    <Reference Include="System.Transactions" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="Microsoft.CSharp" />
@@ -104,7 +109,7 @@
   <ItemGroup>
     <None Include="App.config" />
     <Content Include="NLog.config">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
     <None Include="NLog.xsd">
       <SubType>Designer</SubType>
diff --git a/XelToCsv/packages.config b/XelToCsv/packages.config
index ef56721..d0a8f17 100644
--- a/XelToCsv/packages.config
+++ b/XelToCsv/packages.config
@@ -1,7 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="CommandLineParser" version="2.9.1" targetFramework="net461" />
-  <package id="NLog" version="4.4.12" targetFramework="net461" />
+  <package id="NLog" version="4.7.15" targetFramework="net461" />
+  <package id="NLog.Config" version="4.7.15" targetFramework="net461" />
+  <package id="NLog.Schema" version="4.7.15" targetFramework="net461" />
   <package id="System.Collections" version="4.3.0" targetFramework="net461" />
   <package id="System.Console" version="4.3.1" targetFramework="net461" />
   <package id="System.Diagnostics.Debug" version="4.3.0" targetFramework="net461" />