We are working on this issue. There are different behaviors identified and we have more than one thread about this issue. Can you please confirm if Mr ValuedCustomer's solution work for you.
- Download I217 driver from Intel and install?
Your response is valuable as it will help us narrow down to the root cause.
I have tried this what ValuedCustomer suggested and it does not work for an e7450
Should the imported drivers not show I218-LM?
Similar thread here - http://en.community.dell.com/techcenter/enterprise-client/f/4448/p/19622333/20745810#20745810
I am also having this problem even with our E5550's it just sits around 67% and increases about a 1% every 10 minutes.
I will try using the intel drive off the site today just wanted to input that I am having the same issue.
We have the latest driver pack and WDF 1.1. All other computers using this same task sequence are fine.
I had this issue. SCCM 2012 R2 SP1. It sat at 51% for an hour. I noticed the USB stick that i used as as boot media device kept flashing. I unplugged the usb drive an it finished in minutes.