In the second pair attempt, LE Start Encryption occurs in # 142 (37.979552), followed by an Encryption Change event in # 143 (38.157560). Following that, a new long term key event is notified, and pairing succeeds. Seems as though the Encryption Change event (0x08) only occurs on the second attempt. -- You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.