Sorry to hear that. If I was you, I would try to replace the caps in hope that I can save the router. But that require some skill and knowledge…
If you never do it, then you are probably better off by buying a new router. I could help you and suggest come cap replacements, but I cannot really help you with the soldering and stuff like this:
Heh, I like good caps. And I hate bad ones, so… always trying to remove them all from my HW:
About the router - if nothing looks bulging or leaking, the pls write down what capsare used there. It help to quess, what went wrong... and if this is, by any chance, fixable.
How long it lasted anyway?