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Thank you both for the responses! I will try your suggestions as soon as I am able to get to the user's computer (probably this weekend) and post the results. 
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Thank you both for the responses! I will try your suggestions as soon as I am able to get to the user's computer (probably this weekend) and post the results.

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The company I work for utilizes a Cisco VPN (Cisco VPN Client 4.8.01.0300) &nbsp;to back-up and share data. There is one person having difficulty connecting to the VPN. She is running a PC with Windows XP and Office 2003 (if that matters). When attempting to access the VPN on her computer the application will open, but as soon as I click &quot;connect&quot; a blue screen appears with the following:<br />
<br />
&nbsp;DRIVER_IRQL_NOT_LESS_OR_EQ<wbr />UAL<br />
Stop: 0x000000D1 (0x00000028, 0x00000002, 0x00000000, F6E 4113F) dne2000.sys -Address F6E 4113F base at F6E2D000<br />
<br />
This person *just* had her hard drive wiped and Windows XP reinstalled a week or so ago because of this exact blue-screen error message. I checked for OS, Office, and Manufacturer driver updates and installed them all. &nbsp;Any thoughts regarding what is going on? -Nick<br />

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The company I work for utilizes a Cisco VPN (Cisco VPN Client 4.8.01.0300)  to back-up and share data. There is one person having difficulty connecting to the VPN. She is running a PC with Windows XP and Office 2003 (if that matters). When attempting to access the VPN on her computer the application will open, but as soon as I click "connect" a blue screen appears with the following:

 DRIVER_IRQL_NOT_LESS_OR_EQUAL
Stop: 0x000000D1 (0x00000028, 0x00000002, 0x00000000, F6E 4113F) dne2000.sys -Address F6E 4113F base at F6E2D000

This person *just* had her hard drive wiped and Windows XP reinstalled a week or so ago because of this exact blue-screen error message. I checked for OS, Office, and Manufacturer driver updates and installed them all.  Any thoughts regarding what is going on? -Nick


Cisco VPN Connect Causes Blue Screen

Networking software modules are interfaced with a framework implemented on the machine's operating system that implements the networking functionality of the operating system. The best known frameworks are the TCP/IP model and the OSI model. Systems typically do not use a single protocol to handle a transmission. Instead they use a set of cooperating protocols, sometimes called a protocol family or protocol suite.[9] Some of the best known protocol suites include: IPX/SPX, X.25, AX.25, AppleTalk and TCP/IP. Other protocols indirectly related to networking include the hypertext transfer protocol (HTTP) and its related technologies, Dynamic Host Configuration Protocol (DHCP), Domain Name Server (DNS) and other Internet protocols.

Networking Protocols

A virtual private network (VPN) is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or travelling users access to a central organizational network securely. VPNs encapsulate data transfers using secure cryptographic methods and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted.

Internet Protocol Security (IPsec) is a protocol suite for secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session. IPsec includes protocols for establishing mutual authentication between agents at the beginning of the session and negotiation of cryptographic keys to be used during the session. IPsec can be used in protecting data flows between a pair of hosts (host-to-host), between a pair of security gateways (network-to-network), or between a security gateway and a host (network-to-host). IPsec is an end-to-end security scheme operating in the Internet Layer of the Internet Protocol Suite.