BleakClient: Timeout issue observed with BleakClient function

[RohanDicholkar]

I am trying to run a example code given on github to discover BLE devices and then get connected to my device. My sample code is as below. Performance of the code is very unstable. Out of about 10 tries, I am able to connect to my device only once for remaining 9 times I get timeout error. Timeout error is also given below, Can someone please suggest if any change is required in the program below. Is there any already known issue for this function

"""
Connect by BLEDevice
"""

import asyncio
import platform
import sys

from bleak import BleakClient, BleakScanner
from bleak.exc import BleakError


ADDRESS = (
    "6E:01:8F:08:37:71"
    if platform.system() != "Darwin"
    else "B9EA5233-37EF-4DD6-87A8-2A875E821C46"
)


async def main(ble_address: str):
        device = await BleakScanner.find_device_by_address(ble_address, timeout=5.0)
        if not device:
            raise BleakError(f"A device with address {ble_address} could not be found.")
        async with BleakClient(device) as client:
            svcs = await client.get_services()
            print("Services:")
            for service in svcs:
                print(service)


if __name__ == "__main__":
    asyncio.run(main(sys.argv[1] if len(sys.argv) == 2 else ADDRESS))

Timeout error

==================================================== RESTART: C:\Bluetooth\bleak-develop\bleak-develop\examples\connect_by_bledevice.py ====================================================
Traceback (most recent call last):
  File "C:\Python39\lib\asyncio\locks.py", line 226, in wait
    await fut
asyncio.exceptions.CancelledError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python39\lib\asyncio\tasks.py", line 492, in wait_for
    fut.result()
asyncio.exceptions.CancelledError

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Bluetooth\bleak-develop\bleak-develop\examples\connect_by_bledevice.py", line 32, in <module>
    asyncio.run(main(sys.argv[1] if len(sys.argv) == 2 else ADDRESS))
  File "C:\Python39\lib\asyncio\runners.py", line 44, in run
    return loop.run_until_complete(main)
  File "C:\Python39\lib\asyncio\base_events.py", line 642, in run_until_complete
    return future.result()
  File "C:\Bluetooth\bleak-develop\bleak-develop\examples\connect_by_bledevice.py", line 24, in main
    async with BleakClient(device) as client:
  File "C:\Python39\lib\site-packages\bleak\backends\client.py", line 61, in __aenter__
    await self.connect()
  File "C:\Python39\lib\site-packages\bleak\backends\winrt\client.py", line 249, in connect
    await asyncio.wait_for(event.wait(), timeout=timeout)
  File "C:\Python39\lib\asyncio\tasks.py", line 494, in wait_for
    raise exceptions.TimeoutError() from exc
asyncio.exceptions.TimeoutError

[hbldh]

Closing this in favour of the issue #688 that you created.