Unable to connect to modem/internet via lan but wireless works fine

Both of those are correct. The laptop does have itunes installed and the laptop is saying unidentified network in network and sharing.

Itunes is installed and network and sharing does say unidentified network.

tripleppaul said:

Both of those are correct. The laptop does have itunes installed and the laptop is saying unidentified network in network and sharing.

ITunes also installs the Bonjour service which is famous for causing connection problems on Windows systems. No default gateway, Unidentified network are all classic symptoms of this problem.

You will want to go into Windows services, run box type services.msc, and look for either Bonjour or ID store something followed by a bunch of numbers which is usually at the top of the page. Disable that service and reboot the machine.

If you can't find the service post a screen shot of the services Window and I can find it.