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Problem using VPN connection

Posted on 2007-11-30
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Last Modified: 2010-04-19
I have one SBS 2003 in one lan, and in another office connected with a permanent VPN connection by routers (DSL), with all ports and services open inside the private lan to test.

When I try to login with one user account in the main office works fine, but when I try to login the same user account in the second office, the user can logged but some policies (Like hide last user) don't apply, and sometimes go too slowly (But only sometimes, without any relation with the bandwith usage).

Anybody can help me?
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Question by:lnrivera
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Expert Comment

by:Netman66
ID: 20386741
If Group Policy detects a slow link, then some policies do not apply - this is normal.

To see if the Group Policy client-side extension has determined it's a slow link simply issue the command "gpresult" from a CMD prompt.  Near the top of the outcome it will state whether it thinks the link is slow.

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by:lnrivera
ID: 20387338
Thanks, I try, and I think that this is my problem then, how can I fix it? How can I change this "timeout" parameter?

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Netman66 earned 1500 total points
ID: 20388063
There is a setting in Group Policy for slow link detection - BUT - we normally don't change this because it causes link saturation if you don't have enough pipe to support dragging policies across it.

How much bandwidth do you have to the site in question?
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Author Comment

by:lnrivera
ID: 20389419
I have 2 mbps, and I found one problem in the log of the computer client "error 1054 from userenv"

"Windows cannot obtain the domain controller name for your computer network. (An unexpected network error occurred. ). Group Policy processing aborted.

It's the origin of the problem?
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Expert Comment

by:Netman66
ID: 20393170
It certainly could be an indication of the problem, yes.

A few things you want to check are:

1)  The DNS settings on the workstation.  They should ONLY point to your local DNS server.  This local DNS server should then Forward to the ISP.
2)  Your NICs are set to Auto as well as your switches.  Sometimes forcing a link speed causes some weird things to manifest.
3)  Your patch cable from the computer to the wall.
4)  The cable runs themselves - sometimes EMI causes issues with data transfer on CAT5/6 if it's too close to electrical devices - especially, the flourescent lights!

Let us know what you find.
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Author Comment

by:lnrivera
ID: 20395022
I check all of this, with the same results
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Author Comment

by:lnrivera
ID: 20395072
The LANs are in different segments, It's necessary to configure sometihng in the DNS panel of the SBS 2003? (Like add zone or similar?)

Thanks
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Expert Comment

by:Netman66
ID: 20396352
Yes, you would need to configure Sites in AD Sites and Services if your other site contains a DC.

I don't recall reading that there is one.  If you only have client workstations, then there is no need to configure sites.

How are the remote clients getting their IP addresses?  What is their DNS settings.

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