Tried adding "C:\Windows\twain_32\MF4800" to my path environment variable. Still no luck. Tried almost every solution in the multiple threads.
If I try to scan from the Scanner --> Computer... I get the same old "MF Toolbox is not supported on my installed computer. Install the appropiate MF Toolbox".
Even using all the updated drivers, software, etc.
Using the 10/28/16 network patch too.