Troubleshooting 47
Windows 7 / Vista(SP2)
Symptom 1
The communication between the modem and the computer stops.
Additionally, a yellow exclamation mark (!) appears next to the device name
in Device Manager.
Resolution
Consider the following scenario:
• You have a computer that is running Windows 7, Windows Server 2008
R2, Windows Vista or Windows Server 2008.
• You attach a USB Remote Network Driver Interface Specification (RNDIS)
device to the computer through an external USB hub.
• You remove the modem from the USB hub and then reattach.
Please proceed by installing the Microsoft Hotfix located at the following
Web site:
http://support.microsoft.com/kb/2477042
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