Kristen’s iPod Touch started acting up when attempting to go to the iPod store.  The following message would appear:

“Cannot connect to itunes store” “Invalid argument”

Suggested actions from the Internet included rebooting the router or simply Renewing Lease in the iPod Wi-Fi settings (Settings…Wi-Fi…NetworkName…[Right Arrow button]…scroll down and select Renew Lease)

The IP address should begin with 192.168 but if it begins with 169.254 this indicates it doesn’t have a good IP address.

Finally, I did a cold boot (held down the power button for several seconds) . This seemed to help in reassigning a good IP address.  I’m guessing Renew Lease would normally work.