diff --git a/scripts/e2e.config.ts b/scripts/e2e.config.ts
index 520fc8338d..de008e1366 100644
--- a/scripts/e2e.config.ts
+++ b/scripts/e2e.config.ts
@@ -50,7 +50,7 @@ const startApp = resolved.startApp;
  * The one address e2e opens the web app at and the app is told to bind. Never `localhost`: the
  * runner and the app can resolve that name to different addresses.
  */
-const LOOPBACK = "127.0.0.1";
+const LOOPBACK = "127.0.0.2";
 
 /**
  * Leases a device from the Simlock pool, whose gateway speaks agent-device's lease protocol.
@@ -136,7 +136,7 @@ export default {
       name: "web",
       engine: web({ viewport: { width: 1280, height: 800 } }),
       app: {
-        url: `http://${LOOPBACK}:0`,
+        url: `http://${LOOPBACK}:45873`,
         // Vite answers before the server does; this path is proxied to the server.
         readyUrl: `http://${LOOPBACK}:{port}/.well-known/t3/environment`,
         command: {