Can't get the 4K HDMI ADAPTER TO WORK

I installed the latest drivers.
Installed and ran the DisplayLink Support tool and the Systems Compatibility Check was OK.

My system:
Windows 10 home
Intel core i7-6500U CPU @ 2.50GHZ 2.60GHZ
RAM 16 GB
64 bit operating systems

Display set up:
Built in display= OK
First external monitor BenQ 32 inch monitor connected via built in HDMI= OK
Second external monitor BenQ 32 inch monitor connected via 4K HDMI adapter = This is where the problem is; The monitor was detected by the systems but I cannot make it work.

Hi Orlando,

Thanks for posting. Given the symptoms you describe, our next step is to have you send us the output of our PlugDebug utility (http://plugable.com/support/plugdebug). As you have already reached out to us directly via support@plugable.com, please only reply to our direct email with both the PlugDebug file and your Amazon Order ID number and we’ll determine the next steps from there (we don’t want that information posted in a public forum).

Thank you,

Bob
Plugable Technologies
www.plugable.com/support