VPN problem

[Aivars]

Hello,
I am not able to connect two computers using VPN PPTP. Both PCs (one
notebook) use WinXP SP2. I have made stationary PC VPN server, notebook -
client.
I have dowloaded Windows XP SP2 Support Tools and I have used two utilities
pptpclnt.exe for the client part and pptpsrv.exe as the server part to test
that both PCs see each other and they do. That means the firewall (router)
lets traffic through on port 1723 and GRE 47 protocol is also working.
The error i recieve when connecting is number 678 - failed to repond. Google
researches hint that is not a rooter or firewall problem but something in
windows.
Inner network works OK, computers see each other. I have disabled Norton
Antivirus too. Router is wireless D-Link 642+ which is configured to let the
PPTP and GRE traffic through.


Are there any ideas what else could be wrong?



Thanks

Aivars

 

[Robert L [MS-MVP]]

VPN error 678 is connection issue. If pptp tester confirms the all ports are open, make sure you use the correct IP or name. Or use telnet IP 1723 to test it.

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
Hello,
I am not able to connect two computers using VPN PPTP. Both PCs (one
notebook) use WinXP SP2. I have made stationary PC VPN server, notebook -
client.
I have dowloaded Windows XP SP2 Support Tools and I have used two utilities
pptpclnt.exe for the client part and pptpsrv.exe as the server part to test
that both PCs see each other and they do. That means the firewall (router)
lets traffic through on port 1723 and GRE 47 protocol is also working.
The error i recieve when connecting is number 678 - failed to repond. Google
researches hint that is not a rooter or firewall problem but something in
windows.
Inner network works OK, computers see each other. I have disabled Norton
Antivirus too. Router is wireless D-Link 642+ which is configured to let the
PPTP and GRE traffic through.


Are there any ideas what else could be wrong?



Thanks

Aivars

 

[Aivars]

Thanks, Robert...

Strange, I cannot telnet the computer as you say... What is the problem then? Telnet just hangs up and i cannot stop it without closing command line window.

Aivars

VPN error 678 is connection issue. If pptp tester confirms the all ports are open, make sure you use the correct IP or name. Or use telnet IP 1723 to test it.

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
Hello,
I am not able to connect two computers using VPN PPTP. Both PCs (one
notebook) use WinXP SP2. I have made stationary PC VPN server, notebook -
client.
I have dowloaded Windows XP SP2 Support Tools and I have used two utilities
pptpclnt.exe for the client part and pptpsrv.exe as the server part to test
that both PCs see each other and they do. That means the firewall (router)
lets traffic through on port 1723 and GRE 47 protocol is also working.
The error i recieve when connecting is number 678 - failed to repond. Google
researches hint that is not a rooter or firewall problem but something in
windows.
Inner network works OK, computers see each other. I have disabled Norton
Antivirus too. Router is wireless D-Link 642+ which is configured to let the
PPTP and GRE traffic through.


Are there any ideas what else could be wrong?



Thanks

Aivars

 

[Aivars]

Hello,
I can add that was able to establish VPN connection other way around - i can connect to laptop from stationary PC. But i need to tdo it from laptop to PC

thank

Aivars

Thanks, Robert...

Strange, I cannot telnet the computer as you say... What is the problem then? Telnet just hangs up and i cannot stop it without closing command line window.

Aivars

VPN error 678 is connection issue. If pptp tester confirms the all ports are open, make sure you use the correct IP or name. Or use telnet IP 1723 to test it.

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
Hello,
I am not able to connect two computers using VPN PPTP. Both PCs (one
notebook) use WinXP SP2. I have made stationary PC VPN server, notebook -
client.
I have dowloaded Windows XP SP2 Support Tools and I have used two utilities
pptpclnt.exe for the client part and pptpsrv.exe as the server part to test
that both PCs see each other and they do. That means the firewall (router)
lets traffic through on port 1723 and GRE 47 protocol is also working.
The error i recieve when connecting is number 678 - failed to repond. Google
researches hint that is not a rooter or firewall problem but something in
windows.
Inner network works OK, computers see each other. I have disabled Norton
Antivirus too. Router is wireless D-Link 642+ which is configured to let the
PPTP and GRE traffic through.


Are there any ideas what else could be wrong?



Thanks

Aivars

 

[Aivars]

Hello,
More strange things - i can connect from laptop to PC WHEN i have already established a connection from PC to laptop (all via VPN of course) . What is going on in my situation

thanks
Aivars

Hello,
I can add that was able to establish VPN connection other way around - i can connect to laptop from stationary PC. But i need to tdo it from laptop to PC

thank

Aivars

Thanks, Robert...

Strange, I cannot telnet the computer as you say... What is the problem then? Telnet just hangs up and i cannot stop it without closing command line window.

Aivars

VPN error 678 is connection issue. If pptp tester confirms the all ports are open, make sure you use the correct IP or name. Or use telnet IP 1723 to test it.

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
Hello,
I am not able to connect two computers using VPN PPTP. Both PCs (one
notebook) use WinXP SP2. I have made stationary PC VPN server, notebook -
client.
I have dowloaded Windows XP SP2 Support Tools and I have used two utilities
pptpclnt.exe for the client part and pptpsrv.exe as the server part to test
that both PCs see each other and they do. That means the firewall (router)
lets traffic through on port 1723 and GRE 47 protocol is also working.
The error i recieve when connecting is number 678 - failed to repond. Google
researches hint that is not a rooter or firewall problem but something in
windows.
Inner network works OK, computers see each other. I have disabled Norton
Antivirus too. Router is wireless D-Link 642+ which is configured to let the
PPTP and GRE traffic through.


Are there any ideas what else could be wrong?



Thanks

Aivars

 

[Aivars]

I finally managed to connect from laptop to PC using inner local addresses
when both computers are on inside LAN. It was Norton AV worm protection
which did not allow the connection.

But when i use from laptop still on LAN the outer IP address of the router
as if calling from WAN, the connection fails on authentication - i think
something to do with security protocols.

From outside the LAN - from WAN i cannot connect. I think thats because i am
not able to configure the router properly

Aivars



Hello,
More strange things - i can connect from laptop to PC WHEN i have already
established a connection from PC to laptop (all via VPN of course) . What is
going on in my situation

thanks
Aivars

Hello,
I can add that was able to establish VPN connection other way around - i can
connect to laptop from stationary PC. But i need to tdo it from laptop to PC

thank

Aivars

Thanks, Robert...

Strange, I cannot telnet the computer as you say... What is the problem
then? Telnet just hangs up and i cannot stop it without closing command line
window.

Aivars

VPN error 678 is connection issue. If pptp tester confirms the all ports are
open, make sure you use the correct IP or name. Or use telnet IP 1723 to
test it.

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
Hello,
I am not able to connect two computers using VPN PPTP. Both PCs (one
notebook) use WinXP SP2. I have made stationary PC VPN server, notebook -
client.
I have dowloaded Windows XP SP2 Support Tools and I have used two utilities
pptpclnt.exe for the client part and pptpsrv.exe as the server part to test
that both PCs see each other and they do. That means the firewall (router)
lets traffic through on port 1723 and GRE 47 protocol is also working.
The error i recieve when connecting is number 678 - failed to repond. Google
researches hint that is not a rooter or firewall problem but something in
windows.
Inner network works OK, computers see each other. I have disabled Norton
Antivirus too. Router is wireless D-Link 642+ which is configured to let the
PPTP and GRE traffic through.


Are there any ideas what else could be wrong?



Thanks

Aivars