Try moving the module to another USB port on the motherboard to see if this will boot or install the USB module to another system. If this boots with the other system update the module with the latest release as this release version 5_0_up46_build_3090 that fixes this issue (either by CD-ROM or from GUI).
If none of the above methods resolves your issue download the Demo-CD version of DSS and register from link below. Once downloading the Demo-CD DSS ISO image burn ISO image using your CD-ROM burning software. Then boot with Demo-CD, this will give you 60 days. DSS has iSCSI-R3 functionality and you will be able to continue to access your targets. Then we will issue you an RMA to ship you a replacement.