diff --git a/src/platform/web/Platform.js b/src/platform/web/Platform.js
index 93d37504ff..6c4ac5e69f 100644
--- a/src/platform/web/Platform.js
+++ b/src/platform/web/Platform.js
@@ -151,10 +151,6 @@ export class Platform {
             this._serviceWorkerHandler.registerAndStart(assetPaths.serviceWorker);
         }
         this._syncWorkerPool = null;
-        if (assetPaths.syncWorker && window.Worker) {
-            this._syncWorkerPool = new SyncWorkerPool(this._assetPaths.syncWorker);
-            this._syncWorkerPool.add("1646528482480255");
-        }
         this.notificationService = undefined;
         // Only try to use crypto when olm is provided
         if(this._assetPaths.olm) {
@@ -179,6 +175,11 @@ export class Platform {
         this.mediaDevices = new MediaDevicesWrapper(navigator.mediaDevices);
         this.webRTC = new DOMWebRTC();
         this._themeLoader = import.meta.env.DEV? null: new ThemeLoader(this);
+
+        if (assetPaths.syncWorker && window.Worker) {
+            this._syncWorkerPool = new SyncWorkerPool(this._assetPaths.syncWorker, this.sessionInfoStorage);
+            this._syncWorkerPool.add("1646528482480255");
+        }
     }
 
     async init() {
diff --git a/src/platform/web/worker-sync/SyncWorker.ts b/src/platform/web/worker-sync/SyncWorker.ts
index 776ee55de6..d49fa3597f 100644
--- a/src/platform/web/worker-sync/SyncWorker.ts
+++ b/src/platform/web/worker-sync/SyncWorker.ts
@@ -1,4 +1,10 @@
 import {ISessionInfo} from "../../../matrix/sessioninfo/localstorage/SessionInfoStorage";
+import {HomeServerApi} from "../../../matrix/net/HomeServerApi";
+import {createFetchRequest} from "../dom/request/fetch";
+import {Clock} from "../dom/Clock";
+import {Reconnector} from "../../../matrix/net/Reconnector";
+import {ExponentialRetryDelay} from "../../../matrix/net/ExponentialRetryDelay";
+import {OnlineStatus} from "../dom/OnlineStatus";
 
 type Payload = object;
 
@@ -16,8 +22,29 @@ export interface StartSyncPayload extends Payload {
 }
 
 class SyncWorker {
+    private _clock: Clock;
+    private _reconnector: Reconnector;
+
     async start(payload: StartSyncPayload): Promise<Payload> {
-        console.log(`Starting sync for session with id ${payload.sessionInfo.id}`);
+        const sessionInfo = payload.sessionInfo;
+        console.log(`Starting sync worker for session with id ${sessionInfo.id}`);
+
+        this._clock = new Clock;
+
+        this._reconnector = new Reconnector({
+            onlineStatus: new OnlineStatus(),
+            retryDelay: new ExponentialRetryDelay(this._clock.createTimeout),
+            createMeasure: this._clock.createMeasure
+        });
+
+        const hsApi = new HomeServerApi({
+            homeserver: sessionInfo.homeserver,
+            accessToken: sessionInfo.accessToken,
+            request: createFetchRequest(this._clock.createTimeout),
+            reconnector: this._reconnector,
+        });
+
+
         return payload;
     }
 }