My ip address doesn't show up anymore, even after reset

Yeah I have. I tried releasing, and renewing already.  I don't see too much information need in /all, but I 've done that too already/ I've tried reinstalling my network card itself. But as stated before, the problem lies with the router itself and not my network card, because I have other routers that work just fine with said computer/network card.  So what I really require is a way to access the router's setting itself. That's all I need to get going, because then I can modify the router itself.  However, if one can't access the router in the first place, there would be no solution. Unless, there is some way to utilize command prompt to change settings within the router? It seems that this is not possible though. Any help is appreciated.  Also if this is the death of my router, I can accept that too. I just want to make sure before I chuck it in the bin.