Issue displaying in MS Access Web Browser Control

I am running MS Access 2016 in an office with mutliple machines. In several forms I have added the Web Browser Control and set the hyperlink to a single PDF. On some machines the PDF displays just fine on the Access form. On others instead of being in the web control it launches Acrobat and leaves the control blank. Now this is dependant on user too. On a machine that works for some it doesn't for others and if someone who had it work on one machine moves to another it doesn't work. Some people even get a message that Adobe Acrobat is not open. This appears to be a user setting by machine, but I don't know if its a Adobe Acrobat setting, an MS Access setting, a browser setting, or a machine system setting. Anyone have any ideas? The 1st attached image shos the MS Access form with a blacn window the PDF firle that should be displayed in it. The 2nd image shows the hyperlink builder.