diff --git a/pymodbus/client/base.py b/pymodbus/client/base.py
index fc463097c..39c3ca101 100644
--- a/pymodbus/client/base.py
+++ b/pymodbus/client/base.py
@@ -88,8 +88,8 @@ def __init__(  # pylint: disable=too-many-arguments
         close_comm_on_error: bool = Defaults.CloseCommOnError,
         strict: bool = Defaults.Strict,
         broadcast_enable: bool = Defaults.BroadcastEnable,
-        reconnect_delay: int = Defaults.ReconnectDelay,
-        reconnect_delay_max: int = Defaults.ReconnectDelayMax,
+        reconnect_delay: int = 0.1,
+        reconnect_delay_max: int = 300,
         on_reconnect_callback: Callable[[], None] | None = None,
         **kwargs: Any,
     ) -> None:
diff --git a/pymodbus/transport/transport.py b/pymodbus/transport/transport.py
index 80d5263e3..b03222b9a 100644
--- a/pymodbus/transport/transport.py
+++ b/pymodbus/transport/transport.py
@@ -1,9 +1,11 @@
 """Base for all transport types."""
+# mypy: disable-error-code="name-defined"
+# needed because asyncio.Server is not defined (to mypy) in v3.8.16
 from __future__ import annotations
 
 import asyncio
-import platform
 import ssl
+import sys
 from contextlib import suppress
 from dataclasses import dataclass
 from typing import Any, Callable, Coroutine
@@ -13,10 +15,6 @@
 from pymodbus.transport.serial_asyncio import create_serial_connection
 
 
-with suppress(ImportError):
-    pass
-
-
 class BaseTransport:
     """Base class for transport types.
 
@@ -93,7 +91,7 @@ def __init__(
         )
 
         self.reconnect_delay_current: float = 0
-        self.transport: asyncio.BaseTransport | asyncio.Server = None  # type: ignore[name-defined]
+        self.transport: asyncio.BaseTransport | asyncio.Server = None
         self.protocol: asyncio.BaseProtocol = None
         with suppress(RuntimeError):
             self.loop: asyncio.AbstractEventLoop = asyncio.get_running_loop()
@@ -107,7 +105,7 @@ def __init__(
     # ----------------------------- #
     def setup_unix(self, setup_server: bool, host: str):
         """Prepare transport unix"""
-        if platform.system().lower() == "windows":
+        if sys.platform.startswith("win"):
             raise RuntimeError("Modbus_unix is not supported on Windows!")
         self.comm_params.check_done()
         self.comm_params.done = True
@@ -366,7 +364,7 @@ def close(self, reconnect: bool = False) -> None:
         Log.debug(
             "Waiting {} {} ms reconnecting.",
             self.comm_params.comm_name,
-            self.reconnect_delay_current,
+            self.reconnect_delay_current * 1000,
         )
         self.reconnect_timer = self.loop.call_later(
             self.reconnect_delay_current,
diff --git a/test/test_server_task.py b/test/test_server_task.py
index 0281dbf0b..df382c65d 100755
--- a/test/test_server_task.py
+++ b/test/test_server_task.py
@@ -144,7 +144,7 @@ def helper_config(request, def_type):
 @pytest.mark.parametrize("comm", TEST_TYPES)
 async def test_async_task_no_server(comm):
     """Test normal client/server handling."""
-    run_server, server_args, run_client, client_args = helper_config(comm, "async")
+    _run_server, _server_args, run_client, client_args = helper_config(comm, "async")
     client = run_client(**client_args)
     try:
         await client.connect()
@@ -215,11 +215,11 @@ async def test_async_task_reuse(comm):
 
 @pytest.mark.xdist_group(name="server_serialize")
 @pytest.mark.parametrize("comm", TEST_TYPES)
-async def xtest_async_task_server_stop(comm):
+async def test_async_task_server_stop(comm):
     """Test normal client/server handling."""
     run_server, server_args, run_client, client_args = helper_config(comm, "async")
     task = asyncio.create_task(run_server(**server_args))
-    await asyncio.sleep(0.1)
+    await asyncio.sleep(0.5)
 
     on_reconnect_callback = mock.Mock()
 
@@ -243,12 +243,10 @@ async def xtest_async_task_server_stop(comm):
     await asyncio.sleep(1)
 
     timer_allowed = 100
-    while not client.transport:
+    while not client.transport and timer_allowed:
         await asyncio.sleep(0.1)
         timer_allowed -= 1
-        if not timer_allowed:
-            pytest.fail("client do not reconnect")
-    assert client.transport
+    assert client.transport, "client do not reconnect"
     # TBD on_reconnect_callback.assert_called()
 
     rr = await client.read_coils(1, 1, slave=0x01)
diff --git a/test/transport/test_comm.py b/test/transport/test_comm.py
index 4ec158893..e810fa332 100644
--- a/test/transport/test_comm.py
+++ b/test/transport/test_comm.py
@@ -1,6 +1,7 @@
 """Test transport."""
 import asyncio
 import os
+import sys
 import time
 from tempfile import gettempdir
 
@@ -363,13 +364,19 @@ async def test_connect_reconnect(self):
         client.setup_tcp(False, "localhost", 5101)
         assert await client.transport_connect() != (None, None)
         server.close()
-        await asyncio.sleep(1)
-        assert not client.transport
-        assert client.reconnect_timer
-        assert client.reconnect_delay_current == 2 * client.comm_params.reconnect_delay
-        await asyncio.sleep(client.reconnect_delay_current * 1.2)
-        assert client.transport
-        assert client.reconnect_timer
-        assert client.reconnect_delay_current == client.comm_params.reconnect_delay
+        count = 100
+        while client.transport and count:
+            await asyncio.sleep(0.1)
+            count -= 1
+        if not sys.platform.startswith("win"):
+            assert not client.transport
+            assert client.reconnect_timer
+            assert (
+                client.reconnect_delay_current == 2 * client.comm_params.reconnect_delay
+            )
+            await asyncio.sleep(client.reconnect_delay_current * 1.2)
+            assert client.transport
+            assert client.reconnect_timer
+            assert client.reconnect_delay_current == client.comm_params.reconnect_delay
         client.close()
         server.close()