Task sequence error 0x80070002 during OS deployment

I created a ”Build and Capture” Task Sequence in Configuration Manager 2012 SP1 and when PXE booted a client in windows PE i got the following error

Error 0x80070002 refers to ”Network Access Acount”, but in my case it wasn´t.
To resolve the error i simply activate anonymous authentication on SMS_DP_SMSPKG$ site.