What's wrong with my XP TCP setup???

[Al Dykes]

I have an XP/Pro laptop (all patches) that is behaving very strangely.
I can connect top ISP providers but can't run apps.

When I connect to my Linksys broadband router, ipconfig shows that i
get good IP addresses for my client, gateway, and DNS servers, but I
can't ping any of them. No TCP apps work. I can't get the router's web
page to show up.

When I plug the laptop right into the DSL modem, I can use my Verizon
Userid/login to connect to the network and ipconfig shows goot IP
numbers (I've been on the phone with Verizon. They confirm the IP
numbers and that the dsl line is fine. The PPPoE infercase is reported
as "registered" on the network.

When I put the WiFi card into the machine and go to a coffee shop, the
same happens. I can get IP numbers from the local server but can't run
apps.

I've activated a analog PPP/Slip account and can log into their
network and get IP numbers but still can't run apps.

XP's event viewer shows no errors. It's not just WWW and mail that
don't work. My telnet client(s) can't connect to anything by name or
IP number, either.

WTF?

Thanks

 

[Enkidu]

I have an XP/Pro laptop (all patches) that is behaving very strangely.
I can connect top ISP providers but can't run apps.

When I connect to my Linksys broadband router, ipconfig shows that i
get good IP addresses for my client, gateway, and DNS servers, but I
can't ping any of them. No TCP apps work. I can't get the router's web
page to show up.

When I plug the laptop right into the DSL modem, I can use my Verizon
Userid/login to connect to the network and ipconfig shows goot IP
numbers (I've been on the phone with Verizon. They confirm the IP
numbers and that the dsl line is fine. The PPPoE infercase is reported
as "registered" on the network.

When I put the WiFi card into the machine and go to a coffee shop, the
same happens. I can get IP numbers from the local server but can't run
apps.

I've activated a analog PPP/Slip account and can log into their
network and get IP numbers but still can't run apps.

XP's event viewer shows no errors. It's not just WWW and mail that
don't work. My telnet client(s) can't connect to anything by name or
IP number, either.

Post your ipconfig /all output here. It could be you netmask or possibly
your default route.

Cheers,

Cliff

 

[Al Dykes]

Post your ipconfig /all output here. It could be you netmask or possibly
your default route.

Cheers,

Cliff

That's a PITA since it's not on a network.

I now have a new PC on the same broadband router as the laptop. The
PC works fine and the laptop doesn't.

Below is the ipconfig for the PC. On-screen, the laptop has the same
info except for it's own ip of 192.168.1.101 and a different mac
address, of course.

The laptop can't talk to the web page on the router (192.168.1.1).
The PC can. The PC and laptop can't ping ot communicate in any way.
(the PC is a fresh w2k setup with no firewall.)

The subnet, DNS, and Def gw are the same on both machines.

C:\>ipconfig /all

Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : moby
Primary DNS Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : NVIDIA nForce MCP Networking Adapter

Physical Address. . . . . . . . . : 00-0E-A6-02-65-6F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.100
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 68.237.161.12
71.243.0.12
Lease Obtained. . . . . . . . . . : Sunday, April 01, 2007 2:32:32 PM
Lease Expires . . . . . . . . . . : Tuesday, April 03, 2007 2:32:32 PM

C:\>