.jpg images not displaying in browsers

W10 with latest updates. Noticed that a web site to which .jpg photos have been uploaded are only showing place holders, cannot display the actual images. Problem is across the following browsers: Edge, IE11, Firefox. Do not have chrome installed so cannot check. Another laptop with W7pro displays the images in IE, Firefox and Chrome.
Have verified registry showing content image/jpg and image/gif.
Can't really determine when problem started, just noticed after going to a specific site (Kijiji) that has photo's uploaded as advertisements.

yes, the same settings. As well, as I noted, its the same in Edge, an Firefox browsers, not isolated to IE. It seems to be some setting related to Windows. I tried disabling my anti-virus (eset nod32) but it didn't make any difference.

www.kijiji.ca is the site. My wife's computer has the same operating system and anti-virus, not problem on her's. I can go to other sites that offer .jpg images and view them without any problem.
When I right-click on the image place holder all info shows as 'not available' and it gives the internet zone as protected mode on. I would expect that that setting is common to all sites.

found out that pop-up blocker was the problem. Disabled for that particular site and images immediately appeared.
Thanks for taking the time to respond to me.