https://devzone.nordicsemi.com/f/nordic-q-a/64968/nrf8001-bluetooth-connection-failing-to-windows-10-19041-buildDear all, we produce a device using NRF8001 and never had any issues before, but since last Friday, we cannot connect the device to Windows 10 (build 19041) via bluetooth any longer and we always get error messages to remove and try again to establishen-USTelligent Community 13Thu, 20 Aug 2020 08:07:07 GMThttps://devzone.nordicsemi.com/thread/265472?ContentTypeID=1Thu, 20 Aug 2020 08:07:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:36f690a3-f64e-431c-ab4c-ba41f4e5742cHung Bui<p>Hi Oliver,&nbsp;<br />It&#39;s hard to tell what&nbsp;went&nbsp;wrong. Could you please capture a sniffer log, both in&nbsp;<span>18362&nbsp;and&nbsp;19041&nbsp;case. You may need a nRF52 Dev Kit to use as the sniffer:&nbsp;<a href="https://www.nordicsemi.com/Software-and-tools/Development-Tools/nRF-Sniffer-for-Bluetooth-LE">https://www.nordicsemi.com/Software-and-tools/Development-Tools/nRF-Sniffer-for-Bluetooth-LE</a></span></p><div style="clear:both;"></div>