diff --git a/tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Series/WireBackendTests.cs b/tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Series/WireBackendTests.cs
index 19ef82d0..6b2f619e 100644
--- a/tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Series/WireBackendTests.cs
+++ b/tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Series/WireBackendTests.cs
@@ -71,7 +71,7 @@ public sealed class WireBackendTests
             await driver.InitializeAsync("{}", ct);
 
             await WaitFor(() =>
-                driver.GetDeviceState(DeviceHost) is { FixedTreeCache: not null }, TimeSpan.FromSeconds(5));
+                driver.GetDeviceState(DeviceHost) is { FixedTreeCache: not null }, WaitTimeout);
 
             var state = driver.GetDeviceState(DeviceHost);
             state.ShouldNotBeNull();
@@ -82,7 +82,7 @@ public sealed class WireBackendTests
 
             await WaitFor(() =>
                 state.LastFixedSnapshots.ContainsKey($"{DeviceHost}/Axes/X/AbsolutePosition"),
-                TimeSpan.FromSeconds(3));
+                WaitTimeout);
             state.LastFixedSnapshots[$"{DeviceHost}/Axes/X/AbsolutePosition"].ShouldBe(123456);
         }
     }
@@ -136,7 +136,7 @@ public sealed class WireBackendTests
 
             await WaitFor(() =>
                 driver.GetDeviceState(DeviceHost) is { LastProgramInfo: not null },
-                TimeSpan.FromSeconds(5));
+                WaitTimeout);
 
             var snapshots = await driver.ReadAsync(
                 [$"{DeviceHost}/Program/Name",
@@ -194,7 +194,7 @@ public sealed class WireBackendTests
             {
                 var state = driver.GetDeviceState(DeviceHost);
                 return state is not null && state.LastTimers.Count == 4;
-            }, TimeSpan.FromSeconds(5));
+            }, WaitTimeout);
 
             var snapshots = await driver.ReadAsync(
                 [$"{DeviceHost}/Timers/PowerOnSeconds",
@@ -265,8 +265,11 @@ public sealed class WireBackendTests
             {
                 var state = driver.GetDeviceState(DeviceHost);
                 return state?.FixedTreeCache is { Capabilities.SpindleLoad: true, Capabilities.SpindleMotorSpeed: true }
-                    && state.LastSpindleLoads.Count >= 2;
-            }, TimeSpan.FromSeconds(5));
+                    && state.LastSpindleLoads.Count >= 2
+                    // Motor speeds are cached after a SECOND wire round-trip (FocasDriver spindle poll), so the loads
+                    // arriving first does not mean the speeds have — waiting on loads alone raced under load (#678.3).
+                    && state.LastSpindleMotorSpeeds.Count >= 2;
+            }, WaitTimeout);
 
             var snapshots = await driver.ReadAsync(
                 [$"{DeviceHost}/Spindle/S1/Load",
@@ -282,6 +285,10 @@ public sealed class WireBackendTests
         }
     }
 
+    /// <summary>Generous: the sim fixture answers fast, but a loaded CI host (e.g. a concurrent docker build) does not.</summary>
+    private static readonly TimeSpan WaitTimeout = TimeSpan.FromSeconds(15);
+
+    /// <summary>Polls <paramref name="pred"/>; FAILS the test with a clear message on timeout rather than returning silently.</summary>
     private static async Task WaitFor(Func<bool> pred, TimeSpan timeout)
     {
         var deadline = DateTime.UtcNow + timeout;
@@ -290,5 +297,7 @@ public sealed class WireBackendTests
             if (pred()) return;
             await Task.Delay(50);
         }
+        if (pred()) return;
+        Assert.Fail($"Condition not met within {timeout.TotalSeconds:0.#}s waiting on the FOCAS wire backend.");
     }
 }