Skype issues
Connection issues for Microsoft (Skype, Office365) after enabling DPI services. 12/20/2019 204 29351. DESCRIPTION: When you enable App Control and block the signature ID 5 or ID 7, it may cause connection issues with Microsoft applications such as Skype, Skype for Business and Office 365.. SID 5 is for TCP Random Encryption and SID 6 is for UDP Random Encryption.