diff --git a/lib/d/src/thrift/internal/test/server.d b/lib/d/src/thrift/internal/test/server.d
index b5393f0..fc5e86b 100644
--- a/lib/d/src/thrift/internal/test/server.d
+++ b/lib/d/src/thrift/internal/test/server.d
@@ -102,7 +102,7 @@
         servingCondition.wait();
 
         cancel.trigger();
-        enforce(doneCondition.wait(dur!"msecs"(100)));
+        enforce(doneCondition.wait(dur!"msecs"(3*1000)));
         serverThread.join();
       }
     }
diff --git a/lib/d/src/thrift/transport/file.d b/lib/d/src/thrift/transport/file.d
index 9aebd82..cb8bcd7 100644
--- a/lib/d/src/thrift/transport/file.d
+++ b/lib/d/src/thrift/transport/file.d
@@ -1076,7 +1076,7 @@
 
       // If any attempt takes more than 500ms, treat that as a fatal failure to
       // avoid looping over a potentially very slow operation.
-      enforce(sw.peek().msecs < 500,
+      enforce(sw.peek().msecs < 1500,
         text("close() took ", sw.peek().msecs, "ms."));
 
       // Normally, it takes less than 5ms on my dev box.
@@ -1084,7 +1084,7 @@
       // longer. Additionally, on a Windows Server 2008 instance running in
       // a VirtualBox VM, it has been observed that about a quarter of the runs
       // takes (217 ± 1) ms, for reasons not yet known.
-      if (sw.peek().msecs > 5) {
+      if (sw.peek().msecs > 50) {
         ++numOver;
       }