Venue 5130

We have multiple Venue 5130 systems with the same problem with the wwan device. There is no driver listed on the support page for this device however the CAB file does have drivers for this device. I install the systems with Windows 8 Enterprise x86 and the drivers are correctly installed, but then the sleep state "Standby (Connected)" because of a limitation of the mobile broadband device. I cant select "sleep" from the shutdown or logoff menu. https://www.dropbox.com/s/y30jjy2z87yr4sn/sleepstate.PNG How can i get the Standby Connected enabled?