time capsule suddenly turns off when is plugged with LAN, itdoes not turn off when it

This is really bother me, i got TC 3gb was working good for 6 months, when suddenlt started to turns off, so i have to turn it off and turn it on again, and few hours later turns off.

now i unplugged the LAN wire or ethernet port and the TC yellow light is blinking and is more than a week and it is still on, i though it was woriking good again so i plugged the LAN again and TC turns off again in few hours.



Any suggestions

It does not have guarantee anymore other suggestions??

I got it January 2013, since December I haven't use it, well I will use it like paperweight
Thanks