diff --git a/tests/async/test_admin.py b/tests/async/test_admin.py
index a1cf97c4..62806cbb 100644
--- a/tests/async/test_admin.py
+++ b/tests/async/test_admin.py
@@ -107,23 +107,23 @@ def test_missing_auth(self):
 
     @with_instrumented_server(auth=False)
     def test_admin_connect_with_no_auth(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin')
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin',
                                  auth={'foo': 'bar'})
 
     @with_instrumented_server(auth={'foo': 'bar'})
     def test_admin_connect_with_dict_auth(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin',
                                  auth={'foo': 'bar'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect(
                     'http://localhost:8900', namespace='/admin',
                     auth={'foo': 'baz'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect(
                     'http://localhost:8900', namespace='/admin')
@@ -131,52 +131,52 @@ def test_admin_connect_with_dict_auth(self):
     @with_instrumented_server(auth=[{'foo': 'bar'},
                                     {'u': 'admin', 'p': 'secret'}])
     def test_admin_connect_with_list_auth(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin',
                                  auth={'foo': 'bar'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin',
                                  auth={'u': 'admin', 'p': 'secret'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect('http://localhost:8900',
                                      namespace='/admin', auth={'foo': 'baz'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect('http://localhost:8900',
                                      namespace='/admin')
 
     @with_instrumented_server(auth=_custom_auth)
     def test_admin_connect_with_function_auth(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin',
                                  auth={'foo': 'bar'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect('http://localhost:8900',
                                      namespace='/admin', auth={'foo': 'baz'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect('http://localhost:8900',
                                      namespace='/admin')
 
     @with_instrumented_server(auth=_async_custom_auth)
     def test_admin_connect_with_async_function_auth(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin',
                                  auth={'foo': 'bar'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect('http://localhost:8900',
                                      namespace='/admin', auth={'foo': 'baz'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect('http://localhost:8900',
                                      namespace='/admin')
 
     @with_instrumented_server()
     def test_admin_connect_only_admin(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin')
             sid = admin_client.sid
             events = self._expect({'config': 1, 'all_sockets': 1,
@@ -201,10 +201,10 @@ def test_admin_connect_only_admin(self):
 
     @with_instrumented_server()
     def test_admin_connect_with_others(self):
-        with socketio.SimpleClient() as client1, \
-                socketio.SimpleClient() as client2, \
-                socketio.SimpleClient() as client3, \
-                socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as client1, \
+                socketio.SimpleClient(reconnection=False) as client2, \
+                socketio.SimpleClient(reconnection=False) as client3, \
+                socketio.SimpleClient(reconnection=False) as admin_client:
             client1.connect('http://localhost:8900')
             client1.emit('enter_room', 'room')
             sid1 = client1.sid
@@ -251,7 +251,7 @@ def test_admin_connect_with_others(self):
 
     @with_instrumented_server(mode='production', read_only=True)
     def test_admin_connect_production(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin')
             events = self._expect({'config': 1, 'server_stats': 2},
                                   admin_client)
@@ -272,9 +272,9 @@ def test_admin_connect_production(self):
 
     @with_instrumented_server()
     def test_admin_features(self):
-        with socketio.SimpleClient() as client1, \
-                socketio.SimpleClient() as client2, \
-                socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as client1, \
+                socketio.SimpleClient(reconnection=False) as client2, \
+                socketio.SimpleClient(reconnection=False) as admin_client:
             client1.connect('http://localhost:8900')
             client2.connect('http://localhost:8900')
             admin_client.connect('http://localhost:8900', namespace='/admin')
diff --git a/tests/common/test_admin.py b/tests/common/test_admin.py
index e7667311..a3847898 100644
--- a/tests/common/test_admin.py
+++ b/tests/common/test_admin.py
@@ -97,23 +97,23 @@ def test_missing_auth(self):
 
     @with_instrumented_server(auth=False)
     def test_admin_connect_with_no_auth(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin')
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin',
                                  auth={'foo': 'bar'})
 
     @with_instrumented_server(auth={'foo': 'bar'})
     def test_admin_connect_with_dict_auth(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin',
                                  auth={'foo': 'bar'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect(
                     'http://localhost:8900', namespace='/admin',
                     auth={'foo': 'baz'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect(
                     'http://localhost:8900', namespace='/admin')
@@ -121,38 +121,38 @@ def test_admin_connect_with_dict_auth(self):
     @with_instrumented_server(auth=[{'foo': 'bar'},
                                     {'u': 'admin', 'p': 'secret'}])
     def test_admin_connect_with_list_auth(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin',
                                  auth={'foo': 'bar'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin',
                                  auth={'u': 'admin', 'p': 'secret'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect('http://localhost:8900',
                                      namespace='/admin', auth={'foo': 'baz'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect('http://localhost:8900',
                                      namespace='/admin')
 
     @with_instrumented_server(auth=_custom_auth)
     def test_admin_connect_with_function_auth(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin',
                                  auth={'foo': 'bar'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect('http://localhost:8900',
                                      namespace='/admin', auth={'foo': 'baz'})
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             with pytest.raises(ConnectionError):
                 admin_client.connect('http://localhost:8900',
                                      namespace='/admin')
 
     @with_instrumented_server()
     def test_admin_connect_only_admin(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin')
             sid = admin_client.sid
             events = self._expect({'config': 1, 'all_sockets': 1,
@@ -177,10 +177,10 @@ def test_admin_connect_only_admin(self):
 
     @with_instrumented_server()
     def test_admin_connect_with_others(self):
-        with socketio.SimpleClient() as client1, \
-                socketio.SimpleClient() as client2, \
-                socketio.SimpleClient() as client3, \
-                socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as client1, \
+                socketio.SimpleClient(reconnection=False) as client2, \
+                socketio.SimpleClient(reconnection=False) as client3, \
+                socketio.SimpleClient(reconnection=False) as admin_client:
             client1.connect('http://localhost:8900')
             client1.emit('enter_room', 'room')
             sid1 = client1.sid
@@ -227,7 +227,7 @@ def test_admin_connect_with_others(self):
 
     @with_instrumented_server(mode='production', read_only=True)
     def test_admin_connect_production(self):
-        with socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as admin_client:
             admin_client.connect('http://localhost:8900', namespace='/admin')
             events = self._expect({'config': 1, 'server_stats': 2},
                                   admin_client)
@@ -248,9 +248,9 @@ def test_admin_connect_production(self):
 
     @with_instrumented_server()
     def test_admin_features(self):
-        with socketio.SimpleClient() as client1, \
-                socketio.SimpleClient() as client2, \
-                socketio.SimpleClient() as admin_client:
+        with socketio.SimpleClient(reconnection=False) as client1, \
+                socketio.SimpleClient(reconnection=False) as client2, \
+                socketio.SimpleClient(reconnection=False) as admin_client:
             client1.connect('http://localhost:8900')
             client2.connect('http://localhost:8900')
             admin_client.connect('http://localhost:8900', namespace='/admin')
diff --git a/tests/web_server.py b/tests/web_server.py
index cb24668e..113d475e 100644
--- a/tests/web_server.py
+++ b/tests/web_server.py
@@ -47,7 +47,7 @@ def get_environ(self):
                 env['gunicorn.socket'] = self.connection
                 return env
 
-        self.httpd = make_server('', port, self._app_wrapper,
+        self.httpd = make_server('localhost', port, self._app_wrapper,
                                  ThreadingWSGIServer, WebSocketRequestHandler)
         self.thread = threading.Thread(target=self.httpd.serve_forever)
         self.thread.start()