1.  Go into Device Manager and locate the AccelePort RAS in  
     Network Adapters.

2.  Right-click on the AccelePort RAS and select Uninstall...  

3.  After uninstalling the product go into the Add/Remove Hardware 
     wizard and step through the Uninstall/Unplug a device.  Choose 
     Uninstall a device.  Click on the Show hidden devices check 
     box.  Go through the list and remove anything tied to the Digi 
     AccelePort RAS (Async) and any COM ports that were tied to the 
     AccelePort RAS you just uninstalled. 

4.  From the latest driver that can be downloaded on our web site 
     at www.digi.com, run DGCLN.cmd followed by DGUpdate.exe and 
     reboot.  However you can also do so by going into Device 
     Manager under the properties of the Digi adapter.

5.  It should now find the adapter on boot up and load the new driver
     version.
    

6.  Follow the installation wizard.  If it prompts you for the location
     of the driver, point it to the directory where you have extracted
     the latest driver.  Windows will finish with the installation and
     after all dialogs have closed, you should be able to use the Digi
     adapter.