diff --git a/react/features/base/conference/actionTypes.js b/react/features/base/conference/actionTypes.js
index 79fd8cfc9..ca7a0fe8f 100644
--- a/react/features/base/conference/actionTypes.js
+++ b/react/features/base/conference/actionTypes.js
@@ -36,7 +36,6 @@ export const CONFERENCE_LEFT = Symbol('CONFERENCE_LEFT');
  *
  * {
  *     type: CONFERENCE_WILL_JOIN,
- *     room: string,
  *     conference: JitsiConference
  * }
  */
diff --git a/react/features/base/conference/actions.js b/react/features/base/conference/actions.js
index 6041f5d6d..4c3eb92da 100644
--- a/react/features/base/conference/actions.js
+++ b/react/features/base/conference/actions.js
@@ -195,23 +195,18 @@ export function conferenceLeft(conference) {
 
 /**
  * Signals the intention of the application to have the local participant join a
- * conference with a specific room (name). Similar in fashion
- * to CONFERENCE_JOINED.
+ * specific conference. Similar in fashion to {@code CONFERENCE_JOINED}.
  *
- * @param {string} room - The room (name) which identifies the conference the
- * local participant will (try to) join.
  * @param {JitsiConference} conference - The JitsiConference instance the
  * local participant will (try to) join.
  * @returns {{
  *     type: CONFERENCE_WILL_JOIN,
- *     room: string,
-*      conference: JitsiConference
+ *     conference: JitsiConference
  * }}
  */
-function _conferenceWillJoin(room, conference) {
+function _conferenceWillJoin(conference) {
     return {
         type: CONFERENCE_WILL_JOIN,
-        room,
         conference
     };
 }
@@ -247,13 +242,13 @@ export function createConference() {
         const connection = state['features/base/connection'].connection;
 
         if (!connection) {
-            throw new Error('Cannot create conference without connection');
+            throw new Error('Cannot create a conference without a connection!');
         }
 
         const { password, room } = state['features/base/conference'];
 
-        if (typeof room === 'undefined' || room === '') {
-            throw new Error('Cannot join conference without room name');
+        if (!room) {
+            throw new Error('Cannot join a conference without a room name!');
         }
 
         const conference
@@ -263,7 +258,7 @@ export function createConference() {
                 room.toLowerCase(),
                 state['features/base/config']);
 
-        dispatch(_conferenceWillJoin(room, conference));
+        dispatch(_conferenceWillJoin(conference));
 
         _addConferenceListeners(conference, dispatch);
 
diff --git a/react/features/base/conference/reducer.js b/react/features/base/conference/reducer.js
index c0c579e01..297b92b71 100644
--- a/react/features/base/conference/reducer.js
+++ b/react/features/base/conference/reducer.js
@@ -71,43 +71,40 @@ ReducerRegistry.register('features/base/conference', (state = {}, action) => {
  * @returns {Object} The new state of the feature base/conference after the
  * reduction of the specified action.
  */
-function _conferenceFailed(state, action) {
-    const conference = action.conference;
-
+function _conferenceFailed(state, { conference, error }) {
     if (state.conference && state.conference !== conference) {
         return state;
     }
 
     const passwordRequired
-        = JitsiConferenceErrors.PASSWORD_REQUIRED === action.error
+        = JitsiConferenceErrors.PASSWORD_REQUIRED === error
             ? conference
             : undefined;
 
-    return (
-        assign(state, {
-            audioOnly: undefined,
-            audioOnlyVideoMuted: undefined,
-            conference: undefined,
-            joining: undefined,
-            leaving: undefined,
+    return assign(state, {
+        audioOnly: undefined,
+        audioOnlyVideoMuted: undefined,
+        conference: undefined,
+        joining: undefined,
+        leaving: undefined,
 
-            /**
-             * The indicator of how the conference/room is locked. If falsy, the
-             * conference/room is unlocked; otherwise, it's either
-             * {@code LOCKED_LOCALLY} or {@code LOCKED_REMOTELY}.
-             *
-             * @type {string}
-             */
-            locked: passwordRequired ? LOCKED_REMOTELY : undefined,
-            password: undefined,
+        /**
+         * The indicator of how the conference/room is locked. If falsy, the
+         * conference/room is unlocked; otherwise, it's either
+         * {@code LOCKED_LOCALLY} or {@code LOCKED_REMOTELY}.
+         *
+         * @type {string}
+         */
+        locked: passwordRequired ? LOCKED_REMOTELY : undefined,
+        password: undefined,
 
-            /**
-             * The JitsiConference instance which requires a password to join.
-             *
-             * @type {JitsiConference}
-             */
-            passwordRequired
-        }));
+        /**
+         * The JitsiConference instance which requires a password to join.
+         *
+         * @type {JitsiConference}
+         */
+        passwordRequired
+    });
 }
 
 /**
@@ -120,35 +117,32 @@ function _conferenceFailed(state, action) {
  * @returns {Object} The new state of the feature base/conference after the
  * reduction of the specified action.
  */
-function _conferenceJoined(state, action) {
-    const conference = action.conference;
-
+function _conferenceJoined(state, { conference }) {
     // FIXME The indicator which determines whether a JitsiConference is locked
     // i.e. password-protected is private to lib-jitsi-meet. However, the
     // library does not fire LOCK_STATE_CHANGED upon joining a JitsiConference
     // with a password.
     const locked = conference.room.locked ? LOCKED_REMOTELY : undefined;
 
-    return (
-        assign(state, {
-            /**
-             * The JitsiConference instance represented by the Redux state of
-             * the feature base/conference.
-             *
-             * @type {JitsiConference}
-             */
-            conference,
-            joining: undefined,
-            leaving: undefined,
+    return assign(state, {
+        /**
+         * The JitsiConference instance represented by the Redux state of the
+         * feature base/conference.
+         *
+         * @type {JitsiConference}
+         */
+        conference,
+        joining: undefined,
+        leaving: undefined,
 
-            /**
-             * The indicator which determines whether the conference is locked.
-             *
-             * @type {boolean}
-             */
-            locked,
-            passwordRequired: undefined
-        }));
+        /**
+         * The indicator which determines whether the conference is locked.
+         *
+         * @type {boolean}
+         */
+        locked,
+        passwordRequired: undefined
+    });
 }
 
 /**
@@ -161,24 +155,21 @@ function _conferenceJoined(state, action) {
  * @returns {Object} The new state of the feature base/conference after the
  * reduction of the specified action.
  */
-function _conferenceLeft(state, action) {
-    const conference = action.conference;
-
+function _conferenceLeft(state, { conference }) {
     if (state.conference !== conference) {
         return state;
     }
 
-    return (
-        assign(state, {
-            audioOnly: undefined,
-            audioOnlyVideoMuted: undefined,
-            conference: undefined,
-            joining: undefined,
-            leaving: undefined,
-            locked: undefined,
-            password: undefined,
-            passwordRequired: undefined
-        }));
+    return assign(state, {
+        audioOnly: undefined,
+        audioOnlyVideoMuted: undefined,
+        conference: undefined,
+        joining: undefined,
+        leaving: undefined,
+        locked: undefined,
+        password: undefined,
+        passwordRequired: undefined
+    });
 }
 
 /**
@@ -191,8 +182,8 @@ function _conferenceLeft(state, action) {
  * @returns {Object} The new state of the feature base/conference after the
  * reduction of the specified action.
  */
-function _conferenceWillJoin(state, action) {
-    return set(state, 'joining', action.conference);
+function _conferenceWillJoin(state, { conference }) {
+    return set(state, 'joining', conference);
 }
 
 /**
@@ -205,24 +196,23 @@ function _conferenceWillJoin(state, action) {
  * @returns {Object} The new state of the feature base/conference after the
  * reduction of the specified action.
  */
-function _conferenceWillLeave(state, action) {
-    const conference = action.conference;
-
+function _conferenceWillLeave(state, { conference }) {
     if (state.conference !== conference) {
         return state;
     }
 
-    return (
-        assign(state, {
-            /**
-             * The JitsiConference instance which is currently in the process of
-             * being left.
-             *
-             * @type {JitsiConference}
-             */
-            leaving: conference,
-            passwordRequired: undefined
-        }));
+    return assign(state, {
+        joining: undefined,
+
+        /**
+         * The JitsiConference instance which is currently in the process of
+         * being left.
+         *
+         * @type {JitsiConference}
+         */
+        leaving: conference,
+        passwordRequired: undefined
+    });
 }
 
 /**
@@ -235,20 +225,14 @@ function _conferenceWillLeave(state, action) {
  * @returns {Object} The new state of the feature base/conference after the
  * reduction of the specified action.
  */
-function _lockStateChanged(state, action) {
-    if (state.conference !== action.conference) {
+function _lockStateChanged(state, { conference, locked }) {
+    if (state.conference !== conference) {
         return state;
     }
 
-    let locked;
-
-    if (action.locked) {
-        locked = state.locked || LOCKED_REMOTELY;
-    }
-
     return assign(state, {
-        locked,
-        password: action.locked ? state.password : null
+        locked: locked ? state.locked || LOCKED_REMOTELY : undefined,
+        password: locked ? state.password : undefined
     });
 }
 
@@ -305,31 +289,28 @@ function _setLargeVideoHDStatus(state, action) {
  * @returns {Object} The new state of the feature base/conference after the
  * reduction of the specified action.
  */
-function _setPassword(state, action) {
-    const conference = action.conference;
-
-    switch (action.method) {
+function _setPassword(state, { conference, method, password }) {
+    switch (method) {
     case conference.join:
         if (state.passwordRequired === conference) {
-            return (
-                assign(state, {
-                    locked: LOCKED_REMOTELY,
+            return assign(state, {
+                locked: LOCKED_REMOTELY,
 
-                    /**
-                     * The password with which the conference is to be joined.
-                     *
-                     * @type {string}
-                     */
-                    password: action.password,
-                    passwordRequired: undefined
-                }));
+                /**
+                 * The password with which the conference is to be joined.
+                 *
+                 * @type {string}
+                 */
+                password,
+                passwordRequired: undefined
+            });
         }
         break;
 
     case conference.lock:
         return assign(state, {
-            locked: action.password ? LOCKED_LOCALLY : undefined,
-            password: action.password
+            locked: password ? LOCKED_LOCALLY : undefined,
+            password
         });
     }
 
diff --git a/react/features/base/connection/actions.native.js b/react/features/base/connection/actions.native.js
index 48bfd533c..e8d5f7a3d 100644
--- a/react/features/base/connection/actions.native.js
+++ b/react/features/base/connection/actions.native.js
@@ -211,34 +211,35 @@ export function disconnect() {
     return (dispatch: Dispatch<*>, getState: Function) => {
         const state = getState();
         const { conference, joining } = state['features/base/conference'];
-        const { connection, connecting } = state['features/base/connection'];
 
         // The conference we are joining or have already joined.
-        const _conference = joining || conference;
-
-        // The connection we are connecting or have already connected.
-        const _connection = connecting || connection;
+        const conference_ = conference || joining;
 
         // Promise which completes when the conference has been left and the
         // connection has been disconnected.
         let promise;
 
         // Leave the conference.
-        if (_conference) {
+        if (conference_) {
             // In a fashion similar to JitsiConference's CONFERENCE_LEFT event
             // (and the respective Redux action) which is fired after the
             // conference has been left, notify the application about the
             // intention to leave the conference.
-            dispatch(conferenceWillLeave(_conference));
+            dispatch(conferenceWillLeave(conference_));
 
-            promise = _conference.leave();
+            promise = conference_.leave();
         } else {
             promise = Promise.resolve();
         }
 
         // Disconnect the connection.
-        if (_connection) {
-            promise = promise.then(() => _connection.disconnect());
+        const { connecting, connection } = state['features/base/connection'];
+
+        // The connection we are connecting or have already connected.
+        const connection_ = connection || connecting;
+
+        if (connection_) {
+            promise = promise.then(() => connection_.disconnect());
         }
 
         return promise;
diff --git a/react/features/base/connection/reducer.js b/react/features/base/connection/reducer.js
index 5302fce74..3ba42f9e8 100644
--- a/react/features/base/connection/reducer.js
+++ b/react/features/base/connection/reducer.js
@@ -49,11 +49,14 @@ ReducerRegistry.register(
 function _connectionDisconnected(
         state: Object,
         { connection }: { connection: Object }) {
-    if (state.connection === connection) {
-        return set(state, 'connection', undefined);
+    if (state.connection !== connection) {
+        return state;
     }
 
-    return state;
+    return assign(state, {
+        connecting: undefined,
+        connection: undefined
+    });
 }
 
 /**
@@ -75,8 +78,6 @@ function _connectionEstablished(
     });
 }
 
-/* eslint-disable no-unused-vars */
-
 /**
  * Reduces a specific Redux action CONNECTION_FAILED of the feature
  * base/connection.
@@ -87,11 +88,18 @@ function _connectionEstablished(
  * @returns {Object} The new state of the feature base/connection after the
  * reduction of the specified action.
  */
-function _connectionFailed(state: Object, action: Object) {
-    return set(state, 'connecting', undefined);
-}
+function _connectionFailed(
+        state: Object,
+        { connection }: { connection: Object }) {
+    if (state.connection && state.connection !== connection) {
+        return state;
+    }
 
-/* eslint-enable no-unused-vars */
+    return assign(state, {
+        connecting: undefined,
+        connection: undefined
+    });
+}
 
 /**
  * Reduces a specific Redux action CONNECTION_WILL_CONNECT of the feature
@@ -103,8 +111,10 @@ function _connectionFailed(state: Object, action: Object) {
  * @returns {Object} The new state of the feature base/connection after the
  * reduction of the specified action.
  */
-function _connectionWillConnect(state: Object, action: Object) {
-    return set(state, 'connecting', action.connection);
+function _connectionWillConnect(
+        state: Object,
+        { connection }: { connection: Object }) {
+    return set(state, 'connecting', connection);
 }
 
 /**