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What could be blocking my network adapters from getting a DHCP address?

I have a computer that can connect and authenticate to my wireless network, but both wired and wireless cannot get a DHCP address. I can manually set the IP, but it still will not cannot ping an ip address on the network. It returns a general failure error when pinging an IP.

John

Try running TCP/IP Reset to see if fixing the IP stack repairs the issue.

Open cmd.exe with Run as Administrator
Then netsh int ip reset c:\resetlog.txt
Also, ipconfig /flushdns followed by net stop dnscache followed by net start dnscache
Then restart the computer

Please let use know.

aadih

Excellent suggestion above by John.

You may also try:

(1) Turn your PC off.

(2) Reset your router: Turn your router off for a minute and turn it on again.

(3) Turn your PC on.

If the above does not work, try:

(1) Disabling your network adapter and enabling it again.

(2) Updating your drivers: (a) Network adapter and (b) Router firmware.

NachiPhil

ASKER

Did not help. Further info is that both network adapters work under safe mode with networking.

John

This means the machine is not well.

Try running System File Checker. Run SFC /SCANNOW from an admin command prompt. Run it twice, restart and test.

Is this Windows 7? You may need to run a Repair Install. See this Seven Forums tutorial for assistance.

http://www.sevenforums.com/tutorials/3413-repair-install.html

aadih

When did the problem start? A day or two?

If so, please restore your PC to an earlier time. The best approach is to boot up in safe mode with command prompt and type rstrui.exe to restore.

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NachiPhil

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aadih

Great, :-)

NachiPhil

ASKER

Fixed my own problem.