How do I resolve: iTunes could not connect to the iPad because an invalid response was received from the device.

Hi tinalt,

Thanks for visiting Apple Support Communities.

This error occurs when there are problems communicating through USB. This may be resolved by following these steps:

1. Perform USB isolation troubleshooting, including trying a different USB port directly on the computer. See the advanced steps below for USB troubleshooting.
   
2. Put a USB 2.0 hub between the device and the computer.
   
3. Try a different Dock Connector or Lightning Connector to USB cable.
   
4. Eliminate third-party security software conflicts.
   
5. There may be third-party software installed that modifies your default packet size in Windows by inserting one or more TcpWindowSize entries into your registry. An incorrectly set default packet size can cause this error. Contact the software manufacturer that installed the packet-size modification for assistance. Or, follow this article by Microsoft to reset the packet size back to the default for Windows:How to reset Internet Protocol (TCP/IP).
   
6. Connect your computer directly to your Internet source, bypassing any routers, hubs, or switches. You may need to restart your computer and modem to get online.
   
7. Try to restore from another known-good computer and network.

You can find the article with these steps here:

iTunes: Specific update-and-restore error messages and advanced troubleshooting

http://support.apple.com/kb/TS3694

Cheers,

Jeremy