diff --git a/src/IO.Ably.Tests.Shared/Realtime/ConnectionAttemptsInfoSpecs.cs b/src/IO.Ably.Tests.Shared/Realtime/ConnectionAttemptsInfoSpecs.cs
index 02f7d8e38..5d07db566 100644
--- a/src/IO.Ably.Tests.Shared/Realtime/ConnectionAttemptsInfoSpecs.cs
+++ b/src/IO.Ably.Tests.Shared/Realtime/ConnectionAttemptsInfoSpecs.cs
@@ -57,15 +57,6 @@ public void ShouldSuspend_WhenFirstAttemptEqualOrGreaterThanConnectionStateTtl_S
             state.ShouldSuspend(now.ValueFn).Should().BeTrue("When time is greater than"); // >
         }
 
-        [Fact]
-        public async Task CanAttemptFallback_ShouldBeFalseWithNonDefaultHost()
-        {
-            var client = GetRealtime(opts => opts.RealtimeHost = "test.test.com");
-
-            var result = await client.RestClient.CanFallback(null);
-            result.Should().BeFalse();
-        }
-
         [Theory]
         [InlineData(500)]
         [InlineData(501)]
@@ -84,7 +75,7 @@ public async Task CanAttemptFallback_WithDefaultHostAndAppropriateError_ShouldBe
         public async Task CanAttemptFallback_WhenInternetCheckFails_ShouldBeFalse()
         {
             var client = GetRealtime(internetCheckOk: false);
-            var result = await client.RestClient.CanFallback(null);
+            var result = await client.RestClient.CanFallback(ErrorInfo.ReasonUnknown);
             result.Should().BeFalse();
         }
 
diff --git a/src/IO.Ably.Tests.Shared/Rest/RestSpecs.cs b/src/IO.Ably.Tests.Shared/Rest/RestSpecs.cs
index 1805e7d46..fee022c30 100644
--- a/src/IO.Ably.Tests.Shared/Rest/RestSpecs.cs
+++ b/src/IO.Ably.Tests.Shared/Rest/RestSpecs.cs
@@ -607,7 +607,7 @@ public async Task ShouldUseCustomFallbackHostIfProvided()
             [Fact]
             [Trait("spec", "RSC15a")]
             [Trait("spec", "TO3k6")]
-            public async Task ShouldUseProvidedCustomFallbackHostWhenDefaultHostIsDifferent()
+            public async Task ShouldUseProvidedCustomFallbackHostIrrespectiveOfPrimaryHost()
             {
                 _response.StatusCode = HttpStatusCode.BadGateway;
                 var attemptedList = new List<string>();