The fix to the WMC604 Error for VZ Access Manager is::
1. Unplug the Broadband card and close VZ Access Manager
2.Right Click on My Computer and choose manage
3. Click Service and Applications
4. Click Services
5. Click on "VZ Config Service" and stop the service...Click apply then Ok
6. Right Click on the VZ Config service and click properties
7. Click the log on tab and check "Allow Service to Interact with Desktop"
8. Click Apply and Ok.
9. Restart the VZ config service. Click Apply , Ok \
10. Close Services and try connecting with the Card again.