diff --git a/test/e2e/specs/multiple-users.spec.js b/test/e2e/specs/multiple-users.spec.js
index 7940d8e23..36428e15a 100644
--- a/test/e2e/specs/multiple-users.spec.js
+++ b/test/e2e/specs/multiple-users.spec.js
@@ -44,6 +44,10 @@ test.describe("Multiple Users", () => {
         await page.reload();
         await expect(page.getByText("Log in")).toBeVisible();
 
+        // Try to log in as the admin user
+        await login(page, "admin", true); // Expect failure
+        await screenshot(testInfo, page);
+
         // Login as the new user
         await page.goto("./dashboard"); // Assuming the new user has ID 2
         await login(page, "newuser");
@@ -60,6 +64,8 @@ test.describe("Multiple Users", () => {
         await page.reload();
         await expect(page.getByText("Log in")).toBeVisible();
 
+        // Try to log in as the new user
+        await login(page, "newuser", true); // Expect failure
         await screenshot(testInfo, page);
     });
 });
diff --git a/test/e2e/util-test.js b/test/e2e/util-test.js
index 5e85f4ef8..c5a4b4b3f 100644
--- a/test/e2e/util-test.js
+++ b/test/e2e/util-test.js
@@ -1,3 +1,5 @@
+import { expect } from "@playwright/test";
+
 const fs = require("fs");
 const path = require("path");
 const serverUrl = require("../../config/playwright.config.js").url;
@@ -20,9 +22,10 @@ export async function screenshot(testInfo, page) {
 /**
  * @param {Page} page Page
  * @param {string} user Username to log in with
+ * @param {boolean} expectFail Whether to expect a failure (true) or success (false)
  * @returns {Promise<void>}
  */
-export async function login(page, user = "admin") {
+export async function login(page, user = "admin", expectFail = false) {
     // Login
     await page.getByPlaceholder("Username").click();
     await page.getByPlaceholder("Username").fill(user);
@@ -30,7 +33,12 @@ export async function login(page, user = "admin") {
     await page.getByPlaceholder("Password").fill(user + "123");
     await page.getByLabel("Remember me").check();
     await page.getByRole("button", { name: "Log in" }).click();
-    await page.isVisible("text=Add New Monitor");
+
+    if (expectFail) {
+        await expect(page.getByRole("alert")).toBeVisible();
+    } else {
+        await page.isVisible("text=Add New Monitor");
+    }
 }
 
 /**