We’ve got multiple Surface Pro 3’s deployed in the office, encrypted with a 3rd party software (Sophos) and are seeing an odd issue across all of the Surfaces. When docking/undocking or upon trying to unlock the system, the user sees an extreme delay (between 5 and 10 minutes) where the “Please Wait” circle spins and eventually logs in. Our initial thought was that this was tied to the encryption software and Bitlocker taking a long time to recognize the hardware change however that appears to have not been the solution. We had pushed a GPO that “Enabled use of BitLocker authentication requiring preboot keyboard input on slates” however after a week of success, the ‘please wait’ issue has returned. I’m banging my head against a desk here and would appreciate any help.