Error 800: unable to establish a VPN connection

Posted: 09-11-2006, 02:26 PM
Hi,

I am having problems connecting to the office network. I have a windows XP
Home Edition laptop with SP2. The VPN connection was working fine 3 days ago
and previously but not now. When I try to connect to the network I get the
message: "Error 800: Unable to establish VPN connection. The VPN server maybe
unreachable."

- I have tried recreating the VPN but to no avail.
- I am using a wireless network to connect to the internet and then using VPN.
- I have tried other wireless networks and then VPN too but to no avail.
- I have just tried the VPN connection on another 2 laptop's and desktop PC
and it works fine with the same wireless networks.
- Windows firewall is turned off.
- I am creating the VPN through Network connections > Connect to the network
at my workplace > etc etc................
- The VPN connection has already worked for this user on their laptop but
all of a sudden it has stopped working..
- User has Windows Defender and AVG anti-virus software on his
laptop..However so do all other laptops and PC's and it has not made a
difference there....

Any ideas? Any settings to check?

Error 800: unable to establish a VPN connection


Responses to "Error 800: unable to establish a VPN connection"

Robert L [MVP - Networking]
Guest
Posts: n/a
 
Re: Error 800: unable to establish a VPN connection
Posted: 09-11-2006, 03:56 PM
Do a simple test. Can you telnet port 1723?

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Vijay Mistry" <VijayMistry@discussions.microsoft.com> wrote in message news:CD1F829A-7138-481D-829F-E53193D63ED4@microsoft.com...
Hi,

I am having problems connecting to the office network. I have a windows XP
Home Edition laptop with SP2. The VPN connection was working fine 3 days ago
and previously but not now. When I try to connect to the network I get the
message: "Error 800: Unable to establish VPN connection. The VPN server maybe
unreachable."

- I have tried recreating the VPN but to no avail.
- I am using a wireless network to connect to the internet and then using VPN.
- I have tried other wireless networks and then VPN too but to no avail.
- I have just tried the VPN connection on another 2 laptop's and desktop PC
and it works fine with the same wireless networks.
- Windows firewall is turned off.
- I am creating the VPN through Network connections > Connect to the network
at my workplace > etc etc................
- The VPN connection has already worked for this user on their laptop but
all of a sudden it has stopped working..
- User has Windows Defender and AVG anti-virus software on his
laptop..However so do all other laptops and PC's and it has not made a
difference there....

Any ideas? Any settings to check?

Vijay Mistry
Guest
Posts: n/a
 
Re: Error 800: unable to establish a VPN connection
Posted: 09-11-2006, 04:04 PM

How do i do that? sorry...

"Robert L [MVP - Networking]" wrote:
> Do a simple test. Can you telnet port 1723?
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> "Vijay Mistry" <VijayMistry@discussions.microsoft.com> wrote in message news:CD1F829A-7138-481D-829F-E53193D63ED4@microsoft.com...
> Hi,
>
> I am having problems connecting to the office network. I have a windows XP
> Home Edition laptop with SP2. The VPN connection was working fine 3 days ago
> and previously but not now. When I try to connect to the network I get the
> message: "Error 800: Unable to establish VPN connection. The VPN server maybe
> unreachable."
>
> - I have tried recreating the VPN but to no avail.
> - I am using a wireless network to connect to the internet and then using VPN.
> - I have tried other wireless networks and then VPN too but to no avail.
> - I have just tried the VPN connection on another 2 laptop's and desktop PC
> and it works fine with the same wireless networks.
> - Windows firewall is turned off.
> - I am creating the VPN through Network connections > Connect to the network
> at my workplace > etc etc................
> - The VPN connection has already worked for this user on their laptop but
> all of a sudden it has stopped working..
> - User has Windows Defender and AVG anti-virus software on his
> laptop..However so do all other laptops and PC's and it has not made a
> difference there....
>
> Any ideas? Any settings to check?
>
Robert L [MVP - Networking]
Guest
Posts: n/a
 
Re: Error 800: unable to establish a VPN connection
Posted: 09-12-2006, 04:32 AM
telnet Ip address 1723.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Vijay Mistry" <VijayMistry@discussions.microsoft.com> wrote in message news:6BD7BE91-B0D4-4D7B-8C30-591B105E26C5@microsoft.com...

How do i do that? sorry...

"Robert L [MVP - Networking]" wrote:
> Do a simple test. Can you telnet port 1723?
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> "Vijay Mistry" <VijayMistry@discussions.microsoft.com> wrote in message news:CD1F829A-7138-481D-829F-E53193D63ED4@microsoft.com...
> Hi,
>
> I am having problems connecting to the office network. I have a windows XP
> Home Edition laptop with SP2. The VPN connection was working fine 3 days ago
> and previously but not now. When I try to connect to the network I get the
> message: "Error 800: Unable to establish VPN connection. The VPN server maybe
> unreachable."
>
> - I have tried recreating the VPN but to no avail.
> - I am using a wireless network to connect to the internet and then using VPN.
> - I have tried other wireless networks and then VPN too but to no avail.
> - I have just tried the VPN connection on another 2 laptop's and desktop PC
> and it works fine with the same wireless networks.
> - Windows firewall is turned off.
> - I am creating the VPN through Network connections > Connect to the network
> at my workplace > etc etc................
> - The VPN connection has already worked for this user on their laptop but
> all of a sudden it has stopped working..
> - User has Windows Defender and AVG anti-virus software on his
> laptop..However so do all other laptops and PC's and it has not made a
> difference there....
>
> Any ideas? Any settings to check?
>
Vijay Mistry
Guest
Posts: n/a
 
Re: Error 800: unable to establish a VPN connection
Posted: 09-12-2006, 08:02 AM

I tried this from command prompt and i got this message:

"Connecting to 217.206.181.40...could not open connection to the host, on
port 1723: Connect Failed"

What do i do? how do i open this port?

Thanks..

"Robert L [MVP - Networking]" wrote:
> telnet Ip address 1723.
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> "Vijay Mistry" <VijayMistry@discussions.microsoft.com> wrote in message news:6BD7BE91-B0D4-4D7B-8C30-591B105E26C5@microsoft.com...
>
> How do i do that? sorry...
>
> "Robert L [MVP - Networking]" wrote:
>
> > Do a simple test. Can you telnet port 1723?
> >
> > Bob Lin, MS-MVP, MCSE & CNE
> > Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> > How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> > "Vijay Mistry" <VijayMistry@discussions.microsoft.com> wrote in message news:CD1F829A-7138-481D-829F-E53193D63ED4@microsoft.com...
> > Hi,
> >
> > I am having problems connecting to the office network. I have a windows XP
> > Home Edition laptop with SP2. The VPN connection was working fine 3 days ago
> > and previously but not now. When I try to connect to the network I get the
> > message: "Error 800: Unable to establish VPN connection. The VPN server maybe
> > unreachable."
> >
> > - I have tried recreating the VPN but to no avail.
> > - I am using a wireless network to connect to the internet and then using VPN.
> > - I have tried other wireless networks and then VPN too but to no avail.
> > - I have just tried the VPN connection on another 2 laptop's and desktop PC
> > and it works fine with the same wireless networks.
> > - Windows firewall is turned off.
> > - I am creating the VPN through Network connections > Connect to the network
> > at my workplace > etc etc................
> > - The VPN connection has already worked for this user on their laptop but
> > all of a sudden it has stopped working..
> > - User has Windows Defender and AVG anti-virus software on his
> > laptop..However so do all other laptops and PC's and it has not made a
> > difference there....
> >
> > Any ideas? Any settings to check?
> >
Robert L [MVP - Networking]
Guest
Posts: n/a
 
Re: Error 800: unable to establish a VPN connection
Posted: 09-12-2006, 02:27 PM
Assuming you have a router, I would check it first. These search result may help,

error 721 and error 800 Q: Error 721 and error 800. I have SBS 2003 Standard Edition. ... When attempting with an domain administrator account I still get those error:721,and 800 . ...
www.chicagotech.net/Q&A/vpn25.htm


case Studies - VPN error 721 and 800 Case 1: When a user attempts to access the Windows VPN server that is behind a Linksys WRT54G, he receives VPN Error 800 or 721. ...
www.chicagotech.net/VPN/vpncase800.htm


ras error code Error 797 Error 781 Error 783 Error 800 Error 806 - the VPN connection cannot be completed Error 913 ... Error 800: Unable to establish the VPN connection. ...
www.chicagotech.net/raserrors.htm



Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Vijay Mistry" <VijayMistry@discussions.microsoft.com> wrote in message news:44EE9F2B-7F02-4A66-9213-7DC917B93668@microsoft.com...

I tried this from command prompt and i got this message:

"Connecting to 217.206.181.40...could not open connection to the host, on
port 1723: Connect Failed"

What do i do? how do i open this port?

Thanks..

"Robert L [MVP - Networking]" wrote:
> telnet Ip address 1723.
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> "Vijay Mistry" <VijayMistry@discussions.microsoft.com> wrote in message news:6BD7BE91-B0D4-4D7B-8C30-591B105E26C5@microsoft.com...
>
> How do i do that? sorry...
>
> "Robert L [MVP - Networking]" wrote:
>
> > Do a simple test. Can you telnet port 1723?
> >
> > Bob Lin, MS-MVP, MCSE & CNE
> > Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> > How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> > "Vijay Mistry" <VijayMistry@discussions.microsoft.com> wrote in message news:CD1F829A-7138-481D-829F-E53193D63ED4@microsoft.com...
> > Hi,
> >
> > I am having problems connecting to the office network. I have a windows XP
> > Home Edition laptop with SP2. The VPN connection was working fine 3 days ago
> > and previously but not now. When I try to connect to the network I get the
> > message: "Error 800: Unable to establish VPN connection. The VPN server maybe
> > unreachable."
> >
> > - I have tried recreating the VPN but to no avail.
> > - I am using a wireless network to connect to the internet and then using VPN.
> > - I have tried other wireless networks and then VPN too but to no avail.
> > - I have just tried the VPN connection on another 2 laptop's and desktop PC
> > and it works fine with the same wireless networks.
> > - Windows firewall is turned off.
> > - I am creating the VPN through Network connections > Connect to the network
> > at my workplace > etc etc................
> > - The VPN connection has already worked for this user on their laptop but
> > all of a sudden it has stopped working..
> > - User has Windows Defender and AVG anti-virus software on his
> > laptop..However so do all other laptops and PC's and it has not made a
> > difference there....
> >
> > Any ideas? Any settings to check?
> >
Vijay Mistry
Guest
Posts: n/a
 
Re: Error 800: unable to establish a VPN connection
Posted: 09-12-2006, 02:38 PM

But the thing is.. my desktop PC at home connects to the VPN fine and I
have also managed to connect to the VPN on 2 other laptops.. In fact this is
the only laptop having problems which suggests to me that the VPN server is
fine...

Is there anything on the laptop that i can check? etc? Thanks


"Robert L [MVP - Networking]" wrote:
> Assuming you have a router, I would check it first. These search result may help,
>
> error 721 and error 800 Q: Error 721 and error 800. I have SBS 2003 Standard Edition. ... When attempting with an domain administrator account I still get those error:721,and 800 . ...
> www.chicagotech.net/Q&A/vpn25.htm
>
>
> case Studies - VPN error 721 and 800 Case 1: When a user attempts to access the Windows VPN server that is behind a Linksys WRT54G, he receives VPN Error 800 or 721. ...
> www.chicagotech.net/VPN/vpncase800.htm
>
>
> ras error code Error 797 Error 781 Error 783 Error 800 Error 806 - the VPN connection cannot be completed Error 913 ... Error 800: Unable to establish the VPN connection. ...
> www.chicagotech.net/raserrors.htm
>
>
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> "Vijay Mistry" <VijayMistry@discussions.microsoft.com> wrote in message news:44EE9F2B-7F02-4A66-9213-7DC917B93668@microsoft.com...
>
> I tried this from command prompt and i got this message:
>
> "Connecting to 217.206.181.40...could not open connection to the host, on
> port 1723: Connect Failed"
>
> What do i do? how do i open this port?
>
> Thanks..
>
> "Robert L [MVP - Networking]" wrote:
>
> > telnet Ip address 1723.
> >
> > Bob Lin, MS-MVP, MCSE & CNE
> > Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> > How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> > "Vijay Mistry" <VijayMistry@discussions.microsoft.com> wrote in message news:6BD7BE91-B0D4-4D7B-8C30-591B105E26C5@microsoft.com...
> >
> > How do i do that? sorry...
> >
> > "Robert L [MVP - Networking]" wrote:
> >
> > > Do a simple test. Can you telnet port 1723?
> > >
> > > Bob Lin, MS-MVP, MCSE & CNE
> > > Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> > > How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> > > "Vijay Mistry" <VijayMistry@discussions.microsoft.com> wrote in message news:CD1F829A-7138-481D-829F-E53193D63ED4@microsoft.com...
> > > Hi,
> > >
> > > I am having problems connecting to the office network. I have a windows XP
> > > Home Edition laptop with SP2. The VPN connection was working fine 3 days ago
> > > and previously but not now. When I try to connect to the network I get the
> > > message: "Error 800: Unable to establish VPN connection. The VPN server maybe
> > > unreachable."
> > >
> > > - I have tried recreating the VPN but to no avail.
> > > - I am using a wireless network to connect to the internet and then using VPN.
> > > - I have tried other wireless networks and then VPN too but to no avail.
> > > - I have just tried the VPN connection on another 2 laptop's and desktop PC
> > > and it works fine with the same wireless networks.
> > > - Windows firewall is turned off.
> > > - I am creating the VPN through Network connections > Connect to the network
> > > at my workplace > etc etc................
> > > - The VPN connection has already worked for this user on their laptop but
> > > all of a sudden it has stopped working..
> > > - User has Windows Defender and AVG anti-virus software on his
> > > laptop..However so do all other laptops and PC's and it has not made a
> > > difference there....
> > >
> > > Any ideas? Any settings to check?
> > >
 
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