Verizon UML295 Manual De Uso página 35

Symptom 2
The NDIS device is not completely removed from the fault-tolerant system.
The fault-tolerant system cannot fail over to another NDIS device. Therefore,
the system is in a non-redundant state.
Resolution
Consider the following scenario:
• You use a fault-tolerant system that is running Windows Server 2008 R2
or Windows 7.
• You suddenly remove a Network Driver Interface Specification (NDIS)
device from the system.
Please proceed by installing the Microsoft Hotfix located at the following
Web site:
http://support.microsoft.com/kb/2471472
Symptom 3
A bus driver that manages a Network Driver Interface Specification (NDIS)
miniport is not loaded as expected. Therefore, a yellow exclamation mark (!)
appears in Device Manager next to the device that is driven by the miniport.
The driver also displays error code 38 (CM_PROB_DRIVER_FAILED_PRIOR_
UNLOAD).
For example, this problem may occur on a bus driver that manages a USB
composite device that includes a network adapter.
Resolution
Consider the following scenario:
• You are running a Windows Vista-based computer.
• You resume the computer from standby.
Please proceed by installing the Microsoft Hotfix located at the following
Web site:
http://support.microsoft.com/kb/948278
34 Troubleshooting