DI 514 Wireless Router Problem

I used DI 514 for last 5 years. It worked fine. I used both wired and wireless connectivity. Suddenly one day it is stopped working. I can see all the lights are glowing except the Status light. When I connect from computer to router, it shows as connected. But I cannot browse any page from internet. Even I cannot use the wireless. I reset to defaults as mentioned by manual. But no use. I also tried to go the configuration page and it is not going to that. Pls help me how I can resolve this issue. Thanks for all your solutions.