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No access to network files through VPN connection on an SBS Network

Posted on 2006-06-12
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Last Modified: 2013-11-16
We have an SBS network.

Our remote users can not connect, using Windows Explorer or applications, to network files.
When trying to connect to the resource, it comes up with an error. "Resource Unavailable. Unable to reconnect to network drives"
This message pops up whether connecting through a mapped drive or through Network Neighborhood.

I hope this is enough information.
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Question by:ACDATA
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by:prashsax
ID: 16888506
Are you using ISA 2004 on SBS.

If yes, then you need to open port 445, for them to access the windows shares.
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Author Comment

by:ACDATA
ID: 16888699
No we are not using ISA. We have a Cisco 2811.
We are using VPN, so I didn't think we needed port 445 open.

I'd like to hear more on that, information I have read says opening 445 is big security risk.
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by:prashsax
ID: 16888720
Yes, it is a big risk to open 445 on public IP.

But, if you use firewall, then you need to open 445 for VPN Clients IP Pool only.

Are you able to ping the server with IP address.

Try using \\Server_IP_ADDRESS instead of server name.
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Author Comment

by:ACDATA
ID: 16888790
We are using the SBS VPN not the Cisco, so I'm not sure how to add 445 for only the VPN Client Pool.
As far as pinging the server, it doesn't have an external address. I think I see what you mean, with the VPN open try using the IP address in the run command. Is that right?
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by:prashsax
ID: 16888811
Yes, with VPN connected try using IP address to access the server.

Also, since you do not use ISA, you do not need to open port 445.

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Author Comment

by:ACDATA
ID: 16888872
I will do that tonight from home. I will post my results tomorrow.
Thanks
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Author Comment

by:ACDATA
ID: 16946173
Sorry for the delay on posting results. I was able to use \\Server_IP, and contacted one of my servers, and made it into the files, but not the other server.

This led me to checking permissions. The only difference is the SYSTEM group. Does VPN use SYSTEM permissions?
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Expert Comment

by:prashsax
ID: 16946186
No, their is no link between SYSTEM group and VPN.

What is the error you get what you try to acces the other server.

Can you ping that server or not.

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Author Comment

by:ACDATA
ID: 17002293
Resource not available message, or unable to reconnect to drive on mapped drive.
Yes, I can ping the second server, it just will not let me connect to resources.
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prashsax earned 500 total points
ID: 17002347
Try adding SYSTEM group as well. Lets make it similar to the other server.

Also, can you open shares on this server, from within the network.
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Author Comment

by:ACDATA
ID: 17002405
I will add the SYSTEM group, and yes from within the network we are able to get to the shares.
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Author Comment

by:ACDATA
ID: 17052591
With Prashsax assistance I found the answer.
Not a great situation, we are going to use another VPN solution.
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