Networking issues

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Guest

I'm having a weird problem with a few laptops, yes it is more than one.
After a user connects to a wireless network somewhere, and it isn't every
wireless network, the user then tries to connect to either of 2 VPN solutions
we have and he cannot access anything on our network. The problem continues
even if the laptop is connected wired, it isn't necessarily the wireless.
The laptop cannont ping by IP to internal servers, cannot ping by DNS name of
external or internal names, but can ping external ip addresses.

One of our VPN solutions is PPTP, and it won't connect at all and gives a
619 error message. The other VPN solution is SSL, it connects but the user
cannot connect to anything. One other thing, when we boot up in Safemode
with networking and connect to either VPN solutions. They work perfectly and
can connect to everything on the network

We have shut off the XP firewall, shut off the firewall service so it isn't
the firewall blocking. We have scanned for viruses, adware and spyware.

We have 3 laptops with the same symptoms, the only thing they have in common
is this broke after they connected wirelessly somewhere, be it at a hotel or
unsecure network.

Thanks for any help.
Bobbi
 
After establishing the VPN, the routing table or DNS may change. Posting the result of ipconfig /al here may help.

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
I'm having a weird problem with a few laptops, yes it is more than one.
After a user connects to a wireless network somewhere, and it isn't every
wireless network, the user then tries to connect to either of 2 VPN solutions
we have and he cannot access anything on our network. The problem continues
even if the laptop is connected wired, it isn't necessarily the wireless.
The laptop cannont ping by IP to internal servers, cannot ping by DNS name of
external or internal names, but can ping external ip addresses.

One of our VPN solutions is PPTP, and it won't connect at all and gives a
619 error message. The other VPN solution is SSL, it connects but the user
cannot connect to anything. One other thing, when we boot up in Safemode
with networking and connect to either VPN solutions. They work perfectly and
can connect to everything on the network

We have shut off the XP firewall, shut off the firewall service so it isn't
the firewall blocking. We have scanned for viruses, adware and spyware.

We have 3 laptops with the same symptoms, the only thing they have in common
is this broke after they connected wirelessly somewhere, be it at a hotel or
unsecure network.

Thanks for any help.
Bobbi
 
Robert, here is the output of my ipconfig /all
Windows IP Configuration

Host Name . . . . . . . . . . . . : L550278
Primary Dns Suffix . . . . . . . : deleted
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : deleted

Ethernet adapter Local Area Connection 3:


Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Mobile
Connection
Physical Address. . . . . . . . . : 00-01-6C-EA-10-DA
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 172.168.1.216
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 172.168.1.1
DHCP Server . . . . . . . . . . . : 172.168.1.1
DNS Servers . . . . . . . . . . . : 192.156.97.193
192.156.97.61
Lease Obtained. . . . . . . . . . : Thursday, September 14, 2006
10:20:05 AM
Lease Expires . . . . . . . . . . : Friday, September 15, 2006
10:20:05 AM
 
I thought you have two NICs, one is wired and another is wireless. The ipconfig lists just one NIC.

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
Robert, here is the output of my ipconfig /all
Windows IP Configuration

Host Name . . . . . . . . . . . . : L550278
Primary Dns Suffix . . . . . . . : deleted
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : deleted

Ethernet adapter Local Area Connection 3:


Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Mobile
Connection
Physical Address. . . . . . . . . : 00-01-6C-EA-10-DA
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 172.168.1.216
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 172.168.1.1
DHCP Server . . . . . . . . . . . : 172.168.1.1
DNS Servers . . . . . . . . . . . : 192.156.97.193
192.156.97.61
Lease Obtained. . . . . . . . . . : Thursday, September 14, 2006
10:20:05 AM
Lease Expires . . . . . . . . . . : Friday, September 15, 2006
10:20:05 AM
 
We have the wireless adapter disabled for now, the problem started happening
after the user attached to some wireless network. But the problem happens
with either wired and wireless now.
 
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