As an older 802.11g device, it is highly susceptible to interference on the 2.4 GHz band. Keep the adapter away from large metal objects and household appliances.
Because these drivers are old, you may need to disable "Driver Signature Enforcement" in Windows Advanced Startup settings to allow the installation. digicom usb wave 54 driver repack
Official support from Digicom for this device ended years ago, with the original drivers designed for Windows 98SE, ME, 2000, and XP. A modern repack solves several common issues: As an older 802