Re: Problems with TCP/IP stack running properly

[fyb87]

I am not a computer person and need a step by step for the below. I appreciate the time and patience it would take someone to do this for me. Thanks so much!

Originally Posted by johnwill

I did a search on this error and found this, see if it helps.

http://forums.scotsnewsletter.com/in...0&#entry163318
Here's a minor pro/shop perspective...

I just managed to fix this identical problem on a clients computer. What is causing it is the TCPIP.SYS file in C:\windows\system32\drivers is a fake that is nailed into place by some jiggering of the FAT database or something in the NTFS low level format. This forum and others helped me get past the blind alleys, so I'm returning the favor.

To fix the problem, you have to replace TCPIP.SYS with a good copy. Reinstalling Windows will not allow you to replace it. Starting in Safe Mode Command Prompt won't give you the ability to rename or delete TCPIP.SYS. Starting Windows from the CD and using the Repair Console will also fail unless you follow this set of steps.

1. Get a copy of TCPIP.SYS by searching "TCPIP.SYS" on your machine, looking in hidden files and folders. You'll get a bunch of hits. Right click the files and check the preferences to get the most recent version that has Revision data from Microsoft. The one in C:\windows\system32\drivers is not gonna have any file data associated with it, even though it is exactly the same size as the good file.

2. Put the copy of TCPIP.SYS on the root of your C: drive. I had a problem when I made a folder for it, so I recommend just copying it directly to root.

3. Restart your computer with a Windows XP CD (WIN2000 would also work, I think) and select the Repair console function. Log in as Administrator (better know your administrator password!).

4.Navigate to C:\windows\system32\drivers. You will be able to see the TCPIP.SYS file there is you type in DIR, but you won't be able to delete or rename it.

5. Type in "CHKDSK /P". This runs a disk check on your hard drive and fixes errors whether the System thinks you need it or not.

6. Type "del TCPIP.SYS" and press Return.

7. Type in "CHKDSK /P" and run the disk check again (yes, I tried to do do this without this step the first time and it didn't work).

8. Type in "copy C:\TCPIP.SYS". You should get a message that this completed correctly.

9. Type in "CHKDSK /P" one last time just to be sure (I didn't confirm that this was required, but why waste all the previous effort?)

10. Type in "Exit" and let the computer restart. Your internet access should be restored, the Windows Firewall will work, and ipconfig should be able to config IP.

Hope this helps. I spent two days chasing down this rotten bastich myself. Still don't know what caused it, since it was a client's computer, but I've seen it once or twice in the last three years. I'm thrilled that I finally found out how to fix it without reformatting the computer.

[johnwill]

First off, let's start with some information about your environment.

Please supply the following info, exact make and models of the equipment please.

Make and exact model of the broadband modem.
Make and exact model of the router.
Model numbers can usually be obtained from the label on the device.
Connection type, wired or wireless.
If wireless, encryption used, (none, WEP, WPA, or WPA2)
Make and model of your computer.
Version and patch level of Windows on all affected machines, i.e. XP-Home (or XP-Pro), SP1-SP2, Vista, etc.

Also, please give an exact description of your problem symptoms, including the exact text of any error messages.




On any problem computer, I'd also like to see this:

Hold the Windows key and press R, then type CMD to open a command prompt:

Type the following command:

IPCONFIG /ALL

Right click in the command window and choose Select All, then hit Enter.
Paste the results in a message here.

If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.

[fyb87]

Ok...I had the same exact problem as the person that posted the original post. And did all of the same fixes that person did as well and got the same exact results. Therefore, the next step was to do the above fix. However, one part states to Put the copy of TCPIP.SYS on the root of your C: drive. I do not know how to put something on my root drive. Can someone tell me how to do that? Thanks so much!

[johnwill]

Navigate to the root folder using Windows Explorer, and copy the file there.