Internet Connection lost after connecting to VPN

Hi,
 I have a small office network where I have setup VPN access on the Win 2003 server. I can connect to it through it from my home using VPN connection. However, I lose my internet connection as soon as the VPN connection is established. Any Ideas??
BrijBhasinAsked:
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Erik BjersPrincipal Systems AdministratorCommented:
This is normal.  When connecting to a VPN the local internet connection is blocked to prevent damage to network you are connecting to.  You either need to enable split tuneling (depending on your VPN client), or configure the VPN to allow you to access the internet thrugh the office network when you are connected to the VPN.

eb
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BrijBhasinAuthor Commented:
How would I configure my office VPN to allow internet access. Also, when I'm connected to my office VPN I'm still not able to access any network drives or the local server through VNC, why would this be.

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BrijBhasinAuthor Commented:
also, how would I setup split tunneling and is that better than the first option
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Erik BjersPrincipal Systems AdministratorCommented:
what are you using for the VPN, both server and client ends?

when you say thrugh VNC, are you using VNC to remote control a computer?

YOu should beable to get to your network shares by typing \\server\share in the run box of Windows.

eb
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BrijBhasinAuthor Commented:
On the Server its setup through the regular Remote Access and Services and I'm using a Windows PPTP connection on my Latop.
 
Ya at work I use VNC to connect to my server sometimes to acess the server on the same network so I was hoping it would work the same way once I'm connected through the VPN.

I tried \\MyWindowsServer to see if I can get a list of the network drives but got an error message that it can't connect.
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Erik BjersPrincipal Systems AdministratorCommented:
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bmquintasCommented:
To prevent loss of internet connection, check the network properties of your home pptp connection -> TCP/IP properties -> Advanced , and then clear the "Use remote gateway" box.
If by any chance you have a small lan at home and the ip/subnetmask matches your ofice you may have some problems, instead of using your office server's address to connect ( \\ipaddressofserver) use the address the server has when connecting via pptp - (when you connect via pptp,check the status of the connection, it'll have a server address and a client address, use the server's address to access shares).  
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Rob WilliamsCommented:
If you are using the standard Windows client you can modify to allow access to both remote and local networks, however, be aware this puts the office network at risk as you are opening your network and the Internet to the server through a back door. One note before doing this, the office and home networks have to be on a different subnet. For example if the office uses 192.168.0.x then at home you must use 192.168.1.x or similar. If you don't you will loose VPN connectivity when you make the following change. It won't cause any damage you will just have to change it back until you reconfigure your home network.

Go to:
control panel | network connections | right click on the VPN/Virtual adapter and choose properties | networking | TCP/IP -properties | advanced | general |un-check " use default gateway on remote network"
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BrijBhasinAuthor Commented:
So what would be the best solution that doesn't cause a security issue and could you also outline how to do it. Thanks.
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Erik BjersPrincipal Systems AdministratorCommented:
Best solution would be to allow the VPN users to access the intenet thrugh the corperate network when they are connected to the VPN.  As far as config, I haven't done a windows VPN in a long time so can't help...
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Rob WilliamsCommented:
It is usually suggested you disconnect from the office network to use the Internet. As suggested by ebjers, connecting through the office network to the Internet is also secure but not always possible to configure with the Windows VPN client, as there are limited routing options. If you connect to the remote system via Remote desktop, you can also open a browser window that way on the remote network. Though browsing from a server is not the best practice.
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Rob WilliamsCommented:
Thanks BrijBhasin,
--Rob
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Erik BjersPrincipal Systems AdministratorCommented:
Lanks BrijBhasin,
eb
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