Q: I lost my wifi connection using my time capsule.  My modem works when hardwired.  I also just noticed that my timcapsule doens not light up when you plug it in.

Unplug the power cord for the Time Capsule and leave it powered off for 15-20 minutes. Then, try to power it back up.

What happens?

Unfortunately, the power supply section of the Time Capsule has likely failed.

If you have an Apple store in your area, you should take it to them to let them have a look and discuss your options.

Otherwise, contact Apple directly at http://www.apple.com/support/contact/

If you happen to have AppleCare on one of your Macs, it's possible that the Time Capsule might be covered.

If it's not....Apple won't be of any help since they do not offer repairs. You can refer to the list of Time Capsule repair shops provided by forum expert LaPastenague.

http://sites.google.com/site/lapastenague/a-deconstruction-of-routers-and-modems