Hi moxy5760,
You may check the system in ‘Safe Mode with Networking’. Please follow the steps below:
- Restart or Power on the system.
- Tap <F8> at dell logo until ‘Advanced Boot Options’ appear.
- Choose ‘Safe Mode with Networking’ and hit <Enter>.
You may try to disable the firewall and check if the internet is working fine. Please refer to the link: http://bit.ly/17rLszJ.
Keep me posted with the results. I will be glad to assist further.