diff --git a/SMBLibrary/Client/SMB1Client.cs b/SMBLibrary/Client/SMB1Client.cs
index 3207b10..6f6e785 100644
--- a/SMBLibrary/Client/SMB1Client.cs
+++ b/SMBLibrary/Client/SMB1Client.cs
@@ -436,17 +436,20 @@ namespace SMBLibrary.Client
                 }
                 catch (ArgumentException) // The IAsyncResult object was not returned from the corresponding synchronous method on this class.
                 {
+                    m_isConnected = false;
                     state.ReceiveBuffer.Dispose();
                     return;
                 }
                 catch (ObjectDisposedException)
                 {
+                    m_isConnected = false;
                     Log("[ReceiveCallback] EndReceive ObjectDisposedException");
                     state.ReceiveBuffer.Dispose();
                     return;
                 }
                 catch (SocketException ex)
                 {
+                    m_isConnected = false;
                     Log("[ReceiveCallback] EndReceive SocketException: " + ex.Message);
                     state.ReceiveBuffer.Dispose();
                     return;
diff --git a/SMBLibrary/Client/SMB2Client.cs b/SMBLibrary/Client/SMB2Client.cs
index bba3db9..78b0d73 100644
--- a/SMBLibrary/Client/SMB2Client.cs
+++ b/SMBLibrary/Client/SMB2Client.cs
@@ -369,17 +369,20 @@ namespace SMBLibrary.Client
                 }
                 catch (ArgumentException) // The IAsyncResult object was not returned from the corresponding synchronous method on this class.
                 {
+                    m_isConnected = false;
                     state.ReceiveBuffer.Dispose();
                     return;
                 }
                 catch (ObjectDisposedException)
                 {
+                    m_isConnected = false;
                     Log("[ReceiveCallback] EndReceive ObjectDisposedException");
                     state.ReceiveBuffer.Dispose();
                     return;
                 }
                 catch (SocketException ex)
                 {
+                    m_isConnected = false;
                     Log("[ReceiveCallback] EndReceive SocketException: " + ex.Message);
                     state.ReceiveBuffer.Dispose();
                     return;