Auto Provision Wall Paper Stopped Working

[TRP Tech]

For close to a year, we have hosted images on our web server and configured the provisioning files of the phones to go to the URL to download the image and then load that image as the wall paper. It has worked fine until about 3 days ago.

The image can still be accessed by going to the URL with no issue at all. In the config file, I have these two lines (this would be for a T29G phone)...

phone_setting.backgrounds = Config:T29G.jpg
wallpaper_upload.url = https://www.trpcomm.com/wp-content/uploa...2/T29G.jpg

Again, everything worked fine until a few days ago. If you manually log into the phones web portal and use the URL to download the file, it works fine.

What makes this even stranger is that it has stopped working for multiple phones, at multiple sites, and several different models. Each model phone has a different URL to use. I currently have T46s phones, T29G phones, T54W phones and a few T58's. All of them are having the exact same issue.

Any ideas on what could be going on here? It has me really frustrated.