diff --git a/package.json b/package.json
index 97a9214..b101275 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,8 @@
     "react-router": "6",
     "react-router-dom": "^5.2.0",
     "react-use-clipboard": "^1.0.7",
-    "react-use-measure": "^2.1.1"
+    "react-use-measure": "^2.1.1",
+    "unique-names-generator": "^4.6.0"
   },
   "devDependencies": {
     "@babel/core": "^7.16.5",
diff --git a/src/ClientContext.jsx b/src/ClientContext.jsx
index 20ccd89..91d756a 100644
--- a/src/ClientContext.jsx
+++ b/src/ClientContext.jsx
@@ -145,29 +145,36 @@ export function ClientProvider({ children }) {
     [client]
   );
 
-  const setClient = useCallback((client, session) => {
-    if (client) {
-      localStorage.setItem("matrix-auth-store", JSON.stringify(session));
+  const setClient = useCallback(
+    (newClient, session) => {
+      if (client && client !== newClient) {
+        client.stopClient();
+      }
 
-      setState({
-        client,
-        loading: false,
-        isAuthenticated: true,
-        isPasswordlessUser: !!session.passwordlessUser,
-        userName: client.getUserIdLocalpart(),
-      });
-    } else {
-      localStorage.removeItem("matrix-auth-store");
+      if (newClient) {
+        localStorage.setItem("matrix-auth-store", JSON.stringify(session));
 
-      setState({
-        client: undefined,
-        loading: false,
-        isAuthenticated: false,
-        isPasswordlessUser: false,
-        userName: null,
-      });
-    }
-  }, []);
+        setState({
+          client: newClient,
+          loading: false,
+          isAuthenticated: true,
+          isPasswordlessUser: !!session.passwordlessUser,
+          userName: newClient.getUserIdLocalpart(),
+        });
+      } else {
+        localStorage.removeItem("matrix-auth-store");
+
+        setState({
+          client: undefined,
+          loading: false,
+          isAuthenticated: false,
+          isPasswordlessUser: false,
+          userName: null,
+        });
+      }
+    },
+    [client]
+  );
 
   const logout = useCallback(() => {
     localStorage.removeItem("matrix-auth-store");
@@ -226,6 +233,10 @@ export function ClientProvider({ children }) {
     ]
   );
 
+  useEffect(() => {
+    window.matrixclient = client;
+  }, [client]);
+
   if (error) {
     return <ErrorView error={error} />;
   }
diff --git a/src/auth/RegisterPage.jsx b/src/auth/RegisterPage.jsx
index 70eeaaf..6f08acb 100644
--- a/src/auth/RegisterPage.jsx
+++ b/src/auth/RegisterPage.jsx
@@ -31,13 +31,7 @@ import { usePageTitle } from "../usePageTitle";
 export function RegisterPage() {
   usePageTitle("Register");
 
-  const {
-    loading,
-    client,
-    changePassword,
-    isAuthenticated,
-    isPasswordlessUser,
-  } = useClient();
+  const { loading, isAuthenticated, isPasswordlessUser, client } = useClient();
   const confirmPasswordRef = useRef();
   const history = useHistory();
   const location = useLocation();
@@ -64,11 +58,31 @@ export function RegisterPage() {
       async function submit() {
         setRegistering(true);
 
-        if (isPasswordlessUser) {
-          await changePassword(password);
-        } else {
-          const recaptchaResponse = await execute();
-          await register(userName, password, recaptchaResponse);
+        let roomIds;
+
+        if (client && isPasswordlessUser) {
+          const groupCalls = client.groupCallEventHandler.groupCalls.values();
+          roomIds = Array.from(groupCalls).map(
+            (groupCall) => groupCall.room.roomId
+          );
+        }
+
+        const recaptchaResponse = await execute();
+        const newClient = await register(
+          userName,
+          password,
+          userName,
+          recaptchaResponse
+        );
+
+        if (roomIds) {
+          for (const roomId of roomIds) {
+            try {
+              await newClient.joinRoom(roomId);
+            } catch (error) {
+              console.warn(`Couldn't join room ${roomId}`, error);
+            }
+          }
         }
       }
 
@@ -86,15 +100,7 @@ export function RegisterPage() {
           reset();
         });
     },
-    [
-      register,
-      changePassword,
-      location,
-      history,
-      isPasswordlessUser,
-      reset,
-      execute,
-    ]
+    [register, location, history, isPasswordlessUser, reset, execute, client]
   );
 
   useEffect(() => {
@@ -110,10 +116,10 @@ export function RegisterPage() {
   }, [password, passwordConfirmation]);
 
   useEffect(() => {
-    if (!loading && isAuthenticated && !isPasswordlessUser) {
+    if (!loading && isAuthenticated && !isPasswordlessUser && !registering) {
       history.push("/");
     }
-  }, [history, isAuthenticated, isPasswordlessUser]);
+  }, [history, isAuthenticated, isPasswordlessUser, registering]);
 
   if (loading) {
     return <LoadingView />;
@@ -137,12 +143,6 @@ export function RegisterPage() {
                   autoCapitalize="none"
                   prefix="@"
                   suffix={`:${defaultHomeserverHost}`}
-                  value={
-                    isAuthenticated && isPasswordlessUser
-                      ? client.getUserIdLocalpart()
-                      : undefined
-                  }
-                  disabled={isAuthenticated && isPasswordlessUser}
                 />
               </FieldRow>
               <FieldRow>
@@ -168,22 +168,20 @@ export function RegisterPage() {
                   ref={confirmPasswordRef}
                 />
               </FieldRow>
-              {!isPasswordlessUser && (
-                <Caption>
-                  This site is protected by ReCAPTCHA and the Google{" "}
-                  <Link href="https://www.google.com/policies/privacy/">
-                    Privacy Policy
-                  </Link>{" "}
-                  and{" "}
-                  <Link href="https://policies.google.com/terms">
-                    Terms of Service
-                  </Link>{" "}
-                  apply.
-                  <br />
-                  By clicking "Log in", you agree to our{" "}
-                  <Link href={privacyPolicyUrl}>Terms and conditions</Link>
-                </Caption>
-              )}
+              <Caption>
+                This site is protected by ReCAPTCHA and the Google{" "}
+                <Link href="https://www.google.com/policies/privacy/">
+                  Privacy Policy
+                </Link>{" "}
+                and{" "}
+                <Link href="https://policies.google.com/terms">
+                  Terms of Service
+                </Link>{" "}
+                apply.
+                <br />
+                By clicking "Register", you agree to our{" "}
+                <Link href={privacyPolicyUrl}>Terms and conditions</Link>
+              </Caption>
               {error && (
                 <FieldRow>
                   <ErrorMessage>{error.message}</ErrorMessage>
diff --git a/src/auth/generateRandomName.js b/src/auth/generateRandomName.js
new file mode 100644
index 0000000..7e6ff93
--- /dev/null
+++ b/src/auth/generateRandomName.js
@@ -0,0 +1,137 @@
+import {
+  uniqueNamesGenerator,
+  adjectives,
+  colors,
+  animals,
+} from "unique-names-generator";
+
+const elements = [
+  "hydrogen",
+  "helium",
+  "lithium",
+  "beryllium",
+  "boron",
+  "carbon",
+  "nitrogen",
+  "oxygen",
+  "fluorine",
+  "neon",
+  "sodium",
+  "magnesium",
+  "aluminum",
+  "silicon",
+  "phosphorus",
+  "sulfur",
+  "chlorine",
+  "argon",
+  "potassium",
+  "calcium",
+  "scandium",
+  "titanium",
+  "vanadium",
+  "chromium",
+  "manganese",
+  "iron",
+  "cobalt",
+  "nickel",
+  "copper",
+  "zinc",
+  "gallium",
+  "germanium",
+  "arsenic",
+  "selenium",
+  "bromine",
+  "krypton",
+  "rubidium",
+  "strontium",
+  "yttrium",
+  "zirconium",
+  "niobium",
+  "molybdenum",
+  "technetium",
+  "ruthenium",
+  "rhodium",
+  "palladium",
+  "silver",
+  "cadmium",
+  "indium",
+  "tin",
+  "antimony",
+  "tellurium",
+  "iodine",
+  "xenon",
+  "cesium",
+  "barium",
+  "lanthanum",
+  "cerium",
+  "praseodymium",
+  "neodymium",
+  "promethium",
+  "samarium",
+  "europium",
+  "gadolinium",
+  "terbium",
+  "dysprosium",
+  "holmium",
+  "erbium",
+  "thulium",
+  "ytterbium",
+  "lutetium",
+  "hafnium",
+  "tantalum",
+  "wolfram",
+  "rhenium",
+  "osmium",
+  "iridium",
+  "platinum",
+  "gold",
+  "mercury",
+  "thallium",
+  "lead",
+  "bismuth",
+  "polonium",
+  "astatine",
+  "radon",
+  "francium",
+  "radium",
+  "actinium",
+  "thorium",
+  "protactinium",
+  "uranium",
+  "neptunium",
+  "plutonium",
+  "americium",
+  "curium",
+  "berkelium",
+  "californium",
+  "einsteinium",
+  "fermium",
+  "mendelevium",
+  "nobelium",
+  "lawrencium",
+  "rutherfordium",
+  "dubnium",
+  "seaborgium",
+  "bohrium",
+  "hassium",
+  "meitnerium",
+  "darmstadtium",
+  "roentgenium",
+  "copernicium",
+  "nihonium",
+  "flerovium",
+  "moscovium",
+  "livermorium",
+  "tennessine",
+  "oganesson",
+];
+
+export function generateRandomName(config) {
+  return uniqueNamesGenerator({
+    dictionaries: [colors, adjectives, animals, elements],
+    style: "lowerCase",
+    length: 3,
+    separator: "-",
+    ...config,
+  });
+}
diff --git a/src/auth/useInteractiveRegistration.js b/src/auth/useInteractiveRegistration.js
index fc398a1..dbddbb0 100644
--- a/src/auth/useInteractiveRegistration.js
+++ b/src/auth/useInteractiveRegistration.js
@@ -25,7 +25,13 @@ export function useInteractiveRegistration() {
   }, []);
 
   const register = useCallback(
-    async (username, password, recaptchaResponse, passwordlessUser) => {
+    async (
+      username,
+      password,
+      displayName,
+      recaptchaResponse,
+      passwordlessUser
+    ) => {
       const interactiveAuth = new InteractiveAuth({
         matrixClient: authClientRef.current,
         busyChanged(loading) {
@@ -66,7 +72,7 @@ export function useInteractiveRegistration() {
         deviceId: device_id,
       });
 
-      await client.setDisplayName(username);
+      await client.setDisplayName(displayName);
 
       const session = { user_id, device_id, access_token, passwordlessUser };
 
diff --git a/src/home/UnauthenticatedView.jsx b/src/home/UnauthenticatedView.jsx
index fb6fe42..21db6ac 100644
--- a/src/home/UnauthenticatedView.jsx
+++ b/src/home/UnauthenticatedView.jsx
@@ -14,6 +14,7 @@ import { Body, Caption, Link, Headline } from "../typography/Typography";
 import { Form } from "../form/Form";
 import styles from "./UnauthenticatedView.module.css";
 import commonStyles from "./common.module.css";
+import { generateRandomName } from "../auth/generateRandomName";
 
 export function UnauthenticatedView() {
   const [loading, setLoading] = useState(false);
@@ -26,19 +27,20 @@ export function UnauthenticatedView() {
       e.preventDefault();
       const data = new FormData(e.target);
       const roomName = data.get("callName");
-      const userName = data.get("userName");
+      const displayName = data.get("displayName");
 
       async function submit() {
         setError(undefined);
         setLoading(true);
         const recaptchaResponse = await execute();
+        const userName = generateRandomName();
         const client = await register(
           userName,
           randomString(16),
+          displayName,
           recaptchaResponse,
           true
         );
-
         const roomIdOrAlias = await createRoom(client, roomName);
 
         if (roomIdOrAlias) {
@@ -100,10 +102,10 @@ export function UnauthenticatedView() {
             </FieldRow>
             <FieldRow>
               <InputField
-                id="userName"
-                name="userName"
-                label="Username"
-                placeholder="Username"
+                id="displayName"
+                name="displayName"
+                label="Display Name"
+                placeholder="Display Name"
                 type="text"
                 required
                 autoComplete="off"
diff --git a/src/room/RoomAuthView.jsx b/src/room/RoomAuthView.jsx
index 1a8771d..7f9e650 100644
--- a/src/room/RoomAuthView.jsx
+++ b/src/room/RoomAuthView.jsx
@@ -10,6 +10,7 @@ import { randomString } from "matrix-js-sdk/src/randomstring";
 import { useInteractiveRegistration } from "../auth/useInteractiveRegistration";
 import { Form } from "../form/Form";
 import { UserMenuContainer } from "../UserMenuContainer";
+import { generateRandomName } from "../auth/generateRandomName";
 
 export function RoomAuthView() {
   const [loading, setLoading] = useState(false);
@@ -21,13 +22,20 @@ export function RoomAuthView() {
     (e) => {
       e.preventDefault();
       const data = new FormData(e.target);
-      const userName = data.get("userName");
+      const displayName = data.get("displayName");
 
       async function submit() {
         setError(undefined);
         setLoading(true);
         const recaptchaResponse = await execute();
-        await register(userName, randomString(16), recaptchaResponse, true);
+        const userName = generateRandomName();
+        await register(
+          userName,
+          randomString(16),
+          displayName,
+          recaptchaResponse,
+          true
+        );
       }
 
       submit().catch((error) => {
@@ -58,10 +66,10 @@ export function RoomAuthView() {
           <Form className={styles.form} onSubmit={onSubmit}>
             <FieldRow>
               <InputField
-                id="userName"
-                name="userName"
-                label="Pick a user name"
-                placeholder="Pick a user name"
+                id="displayName"
+                name="displayName"
+                label="Display Name"
+                placeholder="Display Name"
                 type="text"
                 required
                 autoComplete="off"
diff --git a/yarn.lock b/yarn.lock
index 0aa5b16..354e5aa 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -12039,6 +12039,11 @@ unique-filename@^1.1.1:
   dependencies:
     unique-slug "^2.0.0"
 
+unique-names-generator@^4.6.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/unique-names-generator/-/unique-names-generator-4.6.0.tgz#852c1db8149815d6cf665a601820fe80ec2fbc37"
+  integrity sha512-m0fke1emBeT96UYn2psPQYwljooDWRTKt9oUZ5vlt88ZFMBGxqwPyLHXwCfkbgdm8jzioCp7oIpo6KdM+fnUlQ==
+
 unique-slug@^2.0.0:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/unique-slug/-/unique-slug-2.0.2.tgz#baabce91083fc64e945b0f3ad613e264f7cd4e6c"