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the only thing I could imagine is that for some reason, he now has a route on his computer that is directing the VPN traffic to the ISP instead of to the VPN- or the route that he should have to the VPN is no longer populating.
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the only thing I could imagine is that for some reason, he now has a route on his computer that is directing the VPN traffic to the ISP instead of to the VPN- or the route that he should have to the VPN is no longer populating.

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I was able to solve the problem myself. The one comment provided offered a theory but was not the solution to my particular problem.
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I was able to solve the problem myself. The one comment provided offered a theory but was not the solution to my particular problem.

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I have a user that is attempting to connect to my companies network via a Cisco VPN client. Everything has been working for this user for some time now. However today when the user connects they are able to connect successfully but unable to connect to any of the resources that they have been able to in the past. It appears that when the user is connected via VPN it is not using the DNS assignment configured in his group profile. Other users are currently using this same profile with no issue.<br />
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DNS appears to be configured correctly on the users computer for the Cisco adapter however when the user performs a ping or nslookup of resources within my network the IP addresses returned are not of our systems.<br />
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What could be causing his system to use his local/ISPs DNS setting even when connected via VPN?
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I have a user that is attempting to connect to my companies network via a Cisco VPN client. Everything has been working for this user for some time now. However today when the user connects they are able to connect successfully but unable to connect to any of the resources that they have been able to in the past. It appears that when the user is connected via VPN it is not using the DNS assignment configured in his group profile. Other users are currently using this same profile with no issue.

DNS appears to be configured correctly on the users computer for the Cisco adapter however when the user performs a ping or nslookup of resources within my network the IP addresses returned are not of our systems.

What could be causing his system to use his local/ISPs DNS setting even when connected via VPN?

User not getting assigned to right DNS server

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.

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

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.