Hi again

I tried to connect again and now I am back to stuck on waiting for headers as shown:

sudo apt-get update
Hit:1 http://packages.revolutionpi.de stretch InRelease
Hit:2 http://archive.raspberrypi.org/debian stretch InRelease
Hit:3 http://packages.revolutionpi.de stretch-backports InRelease ...

Works!

Hi,
I have a Core 3+ and recently installed the Stretch image following the getting started guide.
My device is behind a router at our office.

After flashing, I believe I typed correctly the MAC and Serial Number.
Trying to do update, I get a rejected connection message.

pi@RevPi10025769481 ...