diff --git a/tests/ZB.MOM.WW.ScadaBridge.CentralUI.PlaywrightTests/Deployment/DeploymentsRealtimeTests.cs b/tests/ZB.MOM.WW.ScadaBridge.CentralUI.PlaywrightTests/Deployment/DeploymentsRealtimeTests.cs
new file mode 100644
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+++ b/tests/ZB.MOM.WW.ScadaBridge.CentralUI.PlaywrightTests/Deployment/DeploymentsRealtimeTests.cs
@@ -0,0 +1,111 @@
+using Microsoft.Playwright;
+using ZB.MOM.WW.ScadaBridge.CentralUI.PlaywrightTests.Cluster;
+using Xunit;
+
+namespace ZB.MOM.WW.ScadaBridge.CentralUI.PlaywrightTests.Deployment;
+
+/// <summary>
+/// E2E coverage for the Deployment Status page's real-time, push-based update
+/// model (Tier 2). The page (<c>/deployment/deployments</c>) is NOT polled: in
+/// <c>OnInitializedAsync</c> it subscribes to
+/// <c>IDeploymentStatusNotifier.StatusChanged</c> — a process singleton the
+/// DeploymentManager raises on every deployment-record status write — and reloads
+/// the table on each notification, which Blazor Server pushes to the browser over
+/// its SignalR circuit. So with the page already open, a CLI <c>instance deploy</c>
+/// makes the instance's row surface with no manual Refresh: the row simply
+/// appearing IS the proof the push path works.
+///
+/// <para>
+/// Each fact mints a fresh ephemeral instance on the real <c>site-a</c> (via
+/// <see cref="DeploymentFixture.CreateInstanceAsync"/>) and deletes it in a
+/// <c>finally</c>. The minted <c>uniqueName</c> is unique, so its row can never
+/// pre-exist — the row's appearance is attributable solely to the deploy under test.
+/// </para>
+///
+/// <para>
+/// <b>Why Fact B's negative is deterministic:</b> the Pause button toggles
+/// <c>_autoRefresh</c>, and <c>OnDeploymentStatusChanged</c> early-returns on
+/// <c>!_autoRefresh</c>, so a paused page deterministically ignores the
+/// <c>StatusChanged</c> notification. The pause click round-trips over the SignalR
+/// circuit (and we wait for the button to flip to "Resume" before deploying), so
+/// <c>_autoRefresh</c> is committed <c>false</c> server-side BEFORE the deploy fires
+/// — the suppression is not a race. Refresh calls <c>LoadDataAsync</c> directly,
+/// bypassing the pause guard, so the row surfaces on the explicit reload.
+/// </para>
+/// </summary>
+[Collection("Playwright")]
+public class DeploymentsRealtimeTests : IClassFixture<DeploymentFixture>
+{
+    private readonly PlaywrightFixture _pw;
+    private readonly DeploymentFixture _cluster;
+
+    public DeploymentsRealtimeTests(PlaywrightFixture pw, DeploymentFixture cluster)
+    {
+        _pw = pw;
+        _cluster = cluster;
+    }
+
+    [SkippableFact]
+    public async Task DeployingInstance_PushesRowWithoutManualRefresh()
+    {
+        Skip.IfNot(_cluster.Available, ClusterAvailability.SkipReason);
+
+        var (instanceId, uniqueName) = await _cluster.CreateInstanceAsync();
+        try
+        {
+            // Open the page FIRST so the StatusChanged subscription is live before we deploy.
+            var page = await _pw.NewAuthenticatedPageAsync();
+            await page.GotoAsync($"{PlaywrightFixture.BaseUrl}/deployment/deployments");
+            await page.WaitForLoadStateAsync(LoadState.NetworkIdle);
+            await Assertions.Expect(page.Locator("h4:has-text('Deployment Status')")).ToBeVisibleAsync();
+
+            // Deploy over the CLI — this writes deployment records and raises StatusChanged,
+            // which the page reloads on (push). No Refresh click here: the row appearing IS
+            // the proof the SignalR push path works.
+            await CliRunner.DeployInstanceAsync(instanceId);
+
+            var row = page.Locator("table tbody tr", new() { HasText = uniqueName });
+            await Assertions.Expect(row).ToBeVisibleAsync(new() { Timeout = 25_000 });
+        }
+        finally
+        {
+            await CliRunner.DeleteInstanceAsync(instanceId);
+        }
+    }
+
+    [SkippableFact]
+    public async Task PausedUpdates_SuppressPush_RefreshRestoresRow()
+    {
+        Skip.IfNot(_cluster.Available, ClusterAvailability.SkipReason);
+
+        var (instanceId, uniqueName) = await _cluster.CreateInstanceAsync();
+        try
+        {
+            var page = await _pw.NewAuthenticatedPageAsync();
+            await page.GotoAsync($"{PlaywrightFixture.BaseUrl}/deployment/deployments");
+            await page.WaitForLoadStateAsync(LoadState.NetworkIdle);
+
+            // Pause — the click round-trips over the circuit, so _autoRefresh is committed
+            // false before the deploy below. The button flipping to "Resume" proves it.
+            await page.Locator("button[aria-label='Pause auto-refresh']").ClickAsync();
+            await Assertions.Expect(page.Locator("button[aria-label='Resume auto-refresh']"))
+                .ToBeVisibleAsync(new() { Timeout = 5_000 });
+
+            await CliRunner.DeployInstanceAsync(instanceId);
+
+            // Paused: StatusChanged is ignored, so the row is NOT auto-added. Settle briefly to
+            // give any (erroneous) push time to manifest, then assert absence.
+            var row = page.Locator("table tbody tr", new() { HasText = uniqueName });
+            await page.WaitForTimeoutAsync(2_000);
+            await Assertions.Expect(row).ToHaveCountAsync(0);
+
+            // Refresh bypasses the pause (LoadDataAsync) -> the row surfaces.
+            await page.Locator("button[aria-label='Refresh deployments']").ClickAsync();
+            await Assertions.Expect(row).ToBeVisibleAsync(new() { Timeout = 15_000 });
+        }
+        finally
+        {
+            await CliRunner.DeleteInstanceAsync(instanceId);
+        }
+    }
+}