[Bob Cerelli]

Again conflicting information:

"i get no more TCP/IP error when i ping my router"

But then in the sentence "I get Destination host unreadable" is an error !!!

Are you getting an error or not? It's kind of like saying I don't have any problems starting my car. It just doesn't start.

And again - Are you getting a valid IP address?

Now that we know you have two wireless cards, have you ever tried connecting at another location? It could simply be your wireless router. Have you ever tried a cabled connection? Do you have any encryption on the wireless router?

[mastern200]

Before i did Repair Install, when i tried to ping the router it said

Windows IP configuration
AN internal error occurred: The request isn't supported.
Please contact Microsoft for further help.
Additional Information: Unable to query host name.

After i did Repair install, it says
Destination Host unreachable
Destination Host unreachable
Destination Host unreachable
Destination Host unreachable
Ping statistics for 192.168.2.1:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss)

I haven't tried connecting at another location
I haven't tried a cable connection
i do have encryption on the router

[Bob Cerelli]

And again for the third time - Are you getting a valid IP address?

Would you want to try a cabled connection to see if the problem is simply with the wireless? Perhaps it is something as simple as the encryption not being configured correctly on the laptop.

Would you consider removing the encryption on the router as a test?

[irievibe]

I have the same error when I type ipconfig. I don't think I read a solution here, but here's how I broke it. Removing these:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NetBT

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TcpipCU

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dhcp

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LmHosts

Caused me to get that error. Granted my TCP/IP stack was corrupt in the first place (thus why I removed those), who knows where the problem really lies. Repairing TCP/IP did nothing for me. Most likely this is a result of spyware. I'm sure no follow up was posted on this cause the guy did a repair install and was done with it. I mean really, who wants to **** with windows registry!! REINSTALL (repair)

[irievibe]

oh and no IP.

Pinging gives you Unable to contact IP driver: error 2

Error 2, anyone, anyone.

I broky TCP/IP bad. Winblows networking for you.

[irievibe]

sounds like repair did work for the original poster, he just had some other issues after the fact. I am stubborn ******* and I will not repair. I WILL NOT I TELL YOU. where is that XP disk anyways

[gelmcp]

Probably missing your tcpip.sys from c:\windows\system32\drivers. You should see a tcpip6.sys and a tcpip.sys. If not, copy the file from another system (or the CD) and reboot.

[ahoulne]

The last post I saw mentioned tcpip.sys. That seems to be the culprit. I have a customer that suddenly went offline the other day with the symptoms listed above. The tcpip.sys in both the cache and the drivers directory had a modify date different from what it should have been. I suspect malicious activity, but have not found anything yet. I replaced the file from the windows update backups and after a reboot, all seems good.

[butcherman]

I had the same problem. I replaced the tcpip.sys file and I can get a valid IP address now. Now my problem is that Internet Explorer won't open any web pages. I can ping them using the command prompt and I can use FireFox to open them but not Internet Eplorer. It just does a time out when I try to view pages.

[dollarbillme]

Replacing the tcpip.sys worked for me. I had a customer machine with the same error message. It turns out the tcpip.sys in the dllcache and drivers folder had a modified date of about a week prior. Must likely virus or malware related.

[steeltzar]

thanks for the information guys, i looked in my sys32/drivers file to find a rogue tcpip.sys file but next to it was a tcpip.sys.orginal file with a date on it approx. 1 week before. I deleted tcpip.sys and renamed the original file and it worked.
However, concerned as to how this happened and if it was malware, is it still on the computer.I have spybot, ad-aware, avg and comodo firewall - isn't that enough!!!
I hope it continues to work on reboot
many thanks, it is great that there are people like you out there willing to give their time and knowledge to help others

[tom_the_guy]

i would like to add to this post. i had the same problem with a friends system. went and searched for "tcpip.sys" and came back with "tcpip.sys.new" so i renamed it back to "tcpip.sys" rebooted and i now have internet access and can renew ip with "cmd" Thanks !!!!!!!

[dcas555]

Thanks for the tips, you've helped me resolve this issue on one of my computers.

The cause of the error in my case was I installed an update to BitComet: when I fixed the problem, BitComet altered me that my half open TCP/IP settings were too low and offered to fix this, renaming the original tcpip.sys file to "tcpip.sys.ORIGINAL".