Hi there,
I was given a pretty simple task - Change the lock screen for all computers in our organisation. Easy.

1) I went ahead and changed the GPO on the DC (server 2012) to point to the new picture.
2) After a GPupdate, within the windows session it works as it should – the new picture shows when press Windows + L

So what’s the problem? We are predominantly a Wi Fi place and with these connections it shows the OLD picture at the start lock screen before you press enter to the login screen. Ethernet changes to the NEW picture fine at the start lock screen and with Windows +L

With the Wi Fi connections, I can literally see the old picture load before Wi Fi even has a chance to connect. Ethernet is quicker is always connected and shows the NEW picture.
So any ideas how I would make this work on Wi Fi?