Laserjet Pro MFP M4792fdw - 2-sided scanning feature

[CorporateMins]

I INVESTED a lot of money in this printer just 18 months ago - a BIG part of my decision to do so was the 2-sided Scanning Feature as I do a LOT of double-sided scanning.  Everything has been working fine until yesterday when the "2-sided" feature simply disappeared.  I'm using the HP Smart App on my Desktop computer (and laptop and iphone).

HOW CAN THIS BE!?! -- The equipment has the ability to do 2-sided, I NEED 2-sided.  It won't allow it from the screen on the printer itself -- How could HP SIMPLY REMOVE THIS FUNCTION?

[Repairatrooper]

This is strictly my opinion but the best method for scanning is always configure the scan to folder function on the printer itself so you are never dependent on an application that might be changed. The other advantage is you simply walk up to the printer and touch an icon on the screen, no launching an app and no going back and forth between computer and printer. 

The other possibility is that the second sided scanner head has failed but that would normally generate an error. Can you still copy 2 sided?

[CorporateMins]

I appreciate your reply but....I've followed the instructions contained in the User Manual to set up the "Scan to Network Folder" feature by accessing the HP Embedded Web Server (EWS) and after clicking on "Quick Set" option (which I used to initially set things up) the "Scan to Network Folder" option drop down is grayed out.  I've gone ahead and filled out everything else and when I test it - it says the path is wrong.  I'm not sure if there is a way I can TALK WITH SOMEONE from HP or you but this is very frustrating and wasting a lot of my time.

Oh, by the way....I can print 2-sided no problem - no issues with the scanner head.

[Repairatrooper]

If the option is grayed out that would indicate that you have not enable that function through the security section of the EWS where you can enable/disable functions that you do not want active. I do not have a screen shot to share and no access to any device similar right now.