Dell Command Update Error

I just got the last of my order for a handful of systems which included a few OptiPlex 3040s and a few Precision Tower T3620s. As part of our setup procedure I install an Antivirus on each one (Webroot SecureAnywhere), then run the DCU software to check for driver updates (of which there are always quite a few which makes no sense on a new machine that was presumably imaged since the last driver updates were released, but I digress). This has never been a problem for me in the last. 

Starting last week though I was getting an error GUI-UVM15 from the DCU software:

GUI-UVM15 - Load of update catalog data failed

I get this on any of the new machines I am trying to set up. Curiously I was also getting an internet connection error from Dell Digital Download on one of them, however that resolved itself after a couple minutes. 

I know these machines can connect to the internet, one of them (an OptiPlex 3040) I gave up on and went to the dell support site and got driver updates from there. This is an exceedingly slow process though that I cannot just set and forget, requiring me to accept the UAC prompt for each driver (which DCU does not require) as well as installing all drivers, not just most. 

I can run DCU on other machines in my environment, including other 3040s and T3620s that we have purchased in the last 6 months so I know it is not a firewall or AV issue (they are all using the same AV and go through the same firewall). All are running the same version 2.3.0

Does anyone know what this error code actually means and what it requires to fix it? I cannot continue to apply driver updates this way (it would be even better if Dell would simply update their images every month or so, negating the need for 10 driver updates and 150 Windows updates).