diff --git a/dddp/migrations/0006_auto_20150428_2245.py b/dddp/migrations/0006_auto_20150428_2245.py
new file mode 100644
index 0000000..d579c7a
--- /dev/null
+++ b/dddp/migrations/0006_auto_20150428_2245.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('dddp', '0005_auto_20150427_1209'),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name='connection',
+            unique_together=set([]),
+        ),
+        migrations.RemoveField(
+            model_name='connection',
+            name='session',
+        ),
+    ]
diff --git a/dddp/models.py b/dddp/models.py
index 8559ad7..16ed19a 100644
--- a/dddp/models.py
+++ b/dddp/models.py
@@ -105,24 +105,14 @@ class Connection(models.Model, object):
 
     """Django DDP connection instance."""
 
-    session = models.ForeignKey('sessions.Session')
     connection_id = AleaIdField()
     server_addr = models.CharField(max_length=255)
     remote_addr = models.CharField(max_length=255)
     version = models.CharField(max_length=255)
 
-    class Meta(object):
-
-        """Connection model meta."""
-
-        unique_together = [
-            ['connection_id', 'session'],
-        ]
-
     def __str__(self):
         """Text representation of subscription."""
-        return u'%s/\u200b%s/\u200b%s' % (
-            self.session_id,
+        return u'%s/\u200b%s' % (
             self.connection_id,
             self.remote_addr,
         )
@@ -131,7 +121,7 @@ class Connection(models.Model, object):
 @python_2_unicode_compatible
 class Subscription(models.Model, object):
 
-    """Session subscription to a publication with params."""
+    """Subscription to a publication with params."""
 
     _publication_cache = {}
     connection = models.ForeignKey(Connection)
diff --git a/dddp/websocket.py b/dddp/websocket.py
index 2f25385..d80080d 100644
--- a/dddp/websocket.py
+++ b/dddp/websocket.py
@@ -145,7 +145,6 @@ class DDPWebSocketApplication(geventwebsocket.WebSocketApplication):
             self.connection = None
         self.logger.info('- %s %s', self, reason or 'CLOSE')
 
-    @transaction.atomic
     def on_message(self, message):
         """Process a message received from remote."""
         if self.ws.closed:
@@ -192,6 +191,7 @@ class DDPWebSocketApplication(geventwebsocket.WebSocketApplication):
         except MeteorError, err:
             self.error(err)
 
+    @transaction.atomic
     def dispatch(self, msg, kwargs):
         """Dispatch msg to appropriate recv_foo handler."""
         # enforce calling 'connect' first
@@ -280,7 +280,6 @@ class DDPWebSocketApplication(geventwebsocket.WebSocketApplication):
             this.version = version
             this.support = support
             self.connection = Connection.objects.create(
-                session_id=this.request.session.session_key,
                 server_addr='%d:%s' % (
                     backend_pid,
                     self.ws.handler.socket.getsockname(),