Mapped drive access via VPN

Here is the setup:

I have a client with domain and all workstations and laptops are domain joined. Each laptop has two mapped drives - Q and S. We have a firewall that has VPN functionality - L2TP over IPsec. I have setup the users in the firewall and setup the VPN settings. We are using Windows VPN tool. The VPN forces all internet activity through the firms connection where the domain is setup. The VPN provides DCHP addresses to the clients, with the firms DNS servers. When the users try to access the shared drives, they are prompted for their credentials.

I thought the local workstation would cache the credentials and pass them to through the VPN?

Edit 1: When connected to the network via VPN I can ping the server host name.

Any help is greatly appeciated.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Bryant SchaperCommented:
Ok, shooting from the hip, but the logon is pre-vpn so they are not authenticated to the domain.  Does the MS vpn support VPN at logon?
Rob WilliamsCommented:
Cached credentials are not passed to the DC.  You need to connect to the VPN before logon as Bryant suggested.  If using the Windows VPN client you should be able to do so.  I have blogged about this.  The article may be helpful.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
YortAuthor Commented:
Thank you for the quick responses. Based on the comments, I found the RADIUS VPN option and am testing it now.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows Networking

From novice to tech pro — start learning today.