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.
NachiPhilAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

JohnBusiness Consultant (Owner)Commented:
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.
aadihCommented:
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.
NachiPhilAuthor Commented:
Did not help.  Further info is that both network adapters work under safe mode with networking.
Determine the Perfect Price for Your IT Services

Do you wonder if your IT business is truly profitable or if you should raise your prices? Learn how to calculate your overhead burden with our free interactive tool and use it to determine the right price for your IT services. Download your free eBook now!

JohnBusiness Consultant (Owner)Commented:
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
aadihCommented:
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.
NachiPhilAuthor Commented:
Thanks for your help.  Looks like it was a corrupt Norton Internet Security installation.  The firewall was blocking everything.  I uninstalled the software and now it works.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
aadihCommented:
Great,  :-)
NachiPhilAuthor Commented:
Fixed my own problem.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Networking

From novice to tech pro — start learning today.