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How to remove VPN settings

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Bajwa11

IS-IT--Management
Apr 19, 2005
30
US
Ok here is the scenario

PC 1 is USA. windows 2003 server installed.
external IP 68.117.x.x
internal ip 192.168.x.x


PC 2 is in ASIA. WIn XP SP2 installed.



PC 1 has a server for a chat application

PC 2 has the client for the chat application



Usually when the chat application is used pc2 simple connects to pc1 using pc1's external ip 68.117.x.x

When I was testing the vpn i connected pc2 to pc1 using vpn. When the vpn server was set up , i tried to use the vpn between pc1 ( USA ) and pc2 ( ASIA ) . It worked but was too slow ! ( should have known that ! )

Anyways. while the vpn was connected the chat application client on pc2 could only connect to the chat server on pc 1 using pc1's internal ip address 192.168.x.x


Now when i disconnected the VPN everything went back to normal but the chat application does not connect anymore. It times out for some reason. When i switch on the vpn and connect to pc1's internal ip, it works fine, but when the VPN is disconnected it stops working !

what should i do ?

ipconfig/ flushdns did not work ! i dont even know if it was supposed to work or not . lol )


any ideas on how to get things back to how they were in the first place :p


[highlight]
M.Bajwa
[/highlight]
 
A lot of VPN client software contains a not very well described firewall component. CISCO, for example, is notorious for this.

Check the client software at both ends for a "hidden" software firewall.
 
Hey Bill.. There was no 3rd Party VPN client involved. I just made a new connection to the VPN using the New connetion feature in Windows XP.

As far as firewall is concerned , I have checked and they are not enabled so that should not be a problem.

A laptop was tried on the PC2 location and it worked just fine. I just think there is some settings saved in PC2 that makes it think that it "needs" the VPN !

[highlight]
M.Bajwa
[/highlight]
 
what happens if you remove the vpn connection from network connections.

Computer/Network Technician
CCNA
 
What chat application are you using? And how exactly are you trying to connect? By name or IP?
 
Serbastic you made me think of something.

Bajwa11, check the internal DNS Server on the PC2 side. It could have stored the internal IP for PC1 side server.

Computer/Network Technician
CCNA
 
What are you talking about LloydSev? There is no internal/external DNS server for PC2, there's only the DNS servers that have been setup for it (you can check what DNS servers you are using with the "ipconfig /all" command).
 
Bajwa11,

Once Teamspeak is launched, Click "Connection" at the top left and then choose "Quick Connect."

Under "Server address:" enter the public IP of PC1

Click Connect

Does this allow you to connect successfully? If not, post error messages for further analysis.
 
thanx for the reply Serbtastic

I am actually doing the quick connect with PC1's public IP

it connects and then times out right away..

but if i turn on the vpn connection and quick connect to the internal IP of pc1 it connects fine.. no timeouts..


I read up on timeouts in the team speak forums and the only reason i could find for a timeout (right after connecting ) is that the versions of the server and client are different.
Howvere, that is not true in my case as both the versions are the same .




[highlight]
M.Bajwa
[/highlight]
 
serbastic said:
What are you talking about LloydSev? There is no internal/external DNS server for PC2, there's only the DNS servers that have been setup for it (you can check what DNS servers you are using with the "ipconfig /all" command).

I said to check the internal DNS server on the PC2 side, as in for that LAN.

I think that the DNS server picked up the internet IP for the server during the VPN converge.

Computer/Network Technician
CCNA
 
Why would you think that? That doesn't even make sense!

Bajwa11, I would try uninstalling/reinstalling the client software. Post results.
 
First off, I agree what Lloyd says does seem unlikely. But I'd follow his advice on this anyways, he's got a very solid knowledge base (from the posts I've seen him put up).

Next up...try a "Route Print" from a command prompt. It's possible that a new, local, route was added to the system after the VPN was connected. I know, I know, these should clear themselves out but I've seen stranger things.
 
lol.. this certainly has turned out to be quick a HI LEVEL technical thread !

As far as the lan which has pc2 is conerned here are the spec.

it is a simple home network with a LINKSYS router . the linksys router has DHCP enabled

Now as LloydSev talked about the inmternal DNS on the that lan. I would assume that did not happen. Cause there are 2 other computers hooked to the very same linksys router and they connect fine ! ( the only thing is that I never tried to connect those other computers to pc1 using the VPN ! )

update for serbastic:

I did uninstall the teamspeak client and installed it again. And it did not work. If you are familiar with teamspeak, when you click quick connect it asks for an ip address and nick name and it has both these already filled in from its last connection.

When I uninstalled and installed it again and ran the program it STILL had the last Ip address and nickname inside. which would mean that i did not perform a proper uninstall ! I guess teamspeak stores info like nickname and server ip address in a registry file which is not deleted at a normal uninstall.


For the time being I have just switched to using msn for voice chat but i realy miss teamspeak as this is the only program I have found where I myself can change the bandwith/ bitrate of my voice communication traffic. If you guys know of any other such programs or a better solution please post.


Thanx



[highlight]
M.Bajwa
[/highlight]
 
Have you tried a registry search for the IP of the VPN link? It might be possible just to modify the value for the external IP.
 
No.. thats not an issue bill. Even though it has the last IP saved. once you start the application , you can change it then which I do.

So its not a matter of looking for that registry

[highlight]
M.Bajwa
[/highlight]
 
In my last post.. internet = internal typo..

anyways, with the other systems picking them up fine, that would rule out DNS, especially after you said the fact that you connect via IP and not name, which hadn't been mentioned yet.

Computer/Network Technician
CCNA
 
sorry for not making that clear earlier LloydSev. I do have the option of connecting by both name and IP but i prefer IP to bypass any DNS issues.


[highlight]
M.Bajwa
[/highlight]
 
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