Windows 10 nrf51822 connection failurehttps://devzone.nordicsemi.com/f/nordic-q-a/52280/windows-10-nrf51822-connection-failureHi, Our system was working fine under Windows 8.1, but now we have upgraded we are having connection issues. Our nrf device uses no security, and Windows 10 tries to constantly connect to our device when bluetooth is on. I am using Softdevice 110en-USTelligent Community 13Thu, 19 Sep 2019 06:51:32 GMTRE: Windows 10 nrf51822 connection failurehttps://devzone.nordicsemi.com/thread/210594?ContentTypeID=1Thu, 19 Sep 2019 06:51:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:70224bc9-20dc-41e3-9006-886078a18d7e&#216;yvind<p>Hello,&nbsp;<br /><br />Sorry for the late reply. Unfortunately, there have been some issues from time to time with Windows and Bluetooth. Have you tried to debug, to see exactly where this happens?</p> <p>Could you please upload the Wireshark trace?</p> <p>Thanks!<br /><br />Kind regards,<br />Øyvind</p><div style="clear:both;"></div>RE: Windows 10 nrf51822 connection failurehttps://devzone.nordicsemi.com/thread/210593?ContentTypeID=1Thu, 19 Sep 2019 06:51:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5e2d2623-ace0-42c1-8254-f3cab8c24cc0&#216;yvind<p>Hello,&nbsp;<br /><br />Sorry for the late reply. Unfortunately, there have been some issues from time to time with Windows and Bluetooth. Have you tried to debug, to see exactly where this happens?</p> <p>Could you please upload the Wireshark trace?</p> <p>Thanks!<br /><br />Kind regards,<br />Øyvind</p><div style="clear:both;"></div>RE: Windows 10 nrf51822 connection failurehttps://devzone.nordicsemi.com/thread/210375?ContentTypeID=1Wed, 18 Sep 2019 11:34:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f04683ec-2592-40bc-9a3b-f54e94d58e6fLodge<p>Hi,</p> <p>From my wireshark trace, seems I am getting the same result as this post-</p> <p><a href="https://devzone.nordicsemi.com/f/nordic-q-a/3672/why-am-i-seeing-an-ll_reject_ind-from-the-slave-intermittently/13335#13335">https://devzone.nordicsemi.com/f/nordic-q-a/3672/why-am-i-seeing-an-ll_reject_ind-from-the-slave-intermittently/13335#13335</a></p> <p>I am sending a&nbsp;sd_ble_gap_sec_info_reply with NULL security and I am seeing the LL_REJECT_IND followed by LL_TERMINATE_IND.</p> <p>Thanks.</p><div style="clear:both;"></div>