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Setup PPTP VPN On Windows Small Business Server 2008

Posted on 2010-09-08
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Last Modified: 2012-05-10
I am having a tough time getting VPN setup and thought I was fairly competent with this, but I guess not.  Company has a comcast SMC router and I knew to get a new a netgear with a static IP to bypass the Comcast vpn block.  The netgear is setup with a static IP and port 1723 is forwarded to server, I am fairly sure this router supports vpn passthrough and I also set the DMZ to server to test as well.  I setup RRAS by going to custom and choosing VPN.  The client side on XP just gets stuck at verifying username and password.  I tried to disable the vpn settings under network policy server (NPS), still no luck.
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Question by:dlafferty
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Expert Comment

by:mattibutt
ID: 33630940
is your user allowed on server side to acess via vpn?
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Author Comment

by:dlafferty
ID: 33630959
Yes I have made sure the user is allow access to VPN in both AD and using the wizard in SBS
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Expert Comment

by:mattibutt
ID: 33630973
ok can you try to connect using admin account
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Author Comment

by:dlafferty
ID: 33630995
I Just gave that a shot still doing same thing, I even put in a wrong username and pass and still doesnt work, leads me to believe that the server is not even processing this VPN request because either way it just sits at verifying username and password
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Expert Comment

by:mattibutt
ID: 33631002
ok so you checked your server is there any other service hosted on your server such as exchange etc are they accessible?
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Author Comment

by:dlafferty
ID: 33631026
Yes Exchange is all good, webaccess, ftp etc.. Internet is fine and the router is forwarding port 25, 80, 443, and 1723 to ip of server.  I can access all those other service from outside just fine
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Expert Comment

by:mattibutt
ID: 33631066
when you try to connect via vpn does your router acknowledge port 1723 rule met?
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Expert Comment

by:mattibutt
ID: 33631102
when you are connecting to vpn are in the network or outside the network if you are trying from the point where gre is not enabled then you cant connect to vpn have you tried to connect from another internet point?
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Expert Comment

by:mattibutt
ID: 33631104
disable the firewall on the client pc where you are trying to connect
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Author Comment

by:dlafferty
ID: 33631107
yes :
[LAN access from remote] from 96.242.154.84:54888 to 192.168.1.10:1723    

IM offsite and at IP 96.242.154.84  
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Author Comment

by:dlafferty
ID: 33631122
Tried firewall off . still no go
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Expert Comment

by:mattibutt
ID: 33631132
http://www.yougetsignal.com/tools/open-ports/ check whether port 1723 is opened
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Expert Comment

by:mattibutt
ID: 33631144
i am getting closed result Port 1723 is closed on 96.242.154.84  http://www.yougetsignal.com/tools/open-ports/
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Author Comment

by:dlafferty
ID: 33631170
just tested the VPN from a Windows XP machine and that works, so now my problem seems isolated to all the Windows 7 machines trying to connected.  Wirewall is off in windows and TRend.  im going to try to unsitnall Trend.  Are there any specifics to connect Win 7 VPN?  looks like its trying to use PPTP first
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mattibutt earned 2000 total points
ID: 33631182
well it shouldnt have any issue at all try to do it now and see how it goes
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Author Closing Comment

by:dlafferty
ID: 33631196
looks like Trend was in the way, I think it had other Firewall Settings, thanks
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Expert Comment

by:mattibutt
ID: 33631213
its a bit annoying kind of application but i am glad its sorted  
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