Installing procedure don't run

I have a Raspberry PI 2 Model B,

I follow your installing step.

all run ok,

but at step 3 lock on reboot step

see this image.

I’ve tried also to boot manually, but don’t go to next and final step

same here facing the same problem! need help…

I use in corporation network, so to to resolve this need to open 8181 port, but now after this step send me the email and return to step 1