I’m trying to deploy BitLocker Network Unlock, but I’m having problems when the computer tries to get the certificate from WDS server (different to DHCP as Microsoft tutorial describe). Monitoring by Wireshark at boot time, the computer obtains a valid IP, but requests the Bitlocker’s PIN (fail). Looking at the event log, the message “Bootmgr failed to obtain the BitLocker volume master key from the network key protector.” message. I tried to look on the Microsoft website, but do not have any information of what can be, computers use Win 10 as OS and servers Windows Server 2012 r2. Does someone could help me?

I followed this tutorial (https://technet.microsoft.com/en-GB/library/jj574173.aspx) to configure.