Using the image above as an example, the first router that is connected to the internet should be set up normally. Make sure you can get out on the Internet and that everything works normally with it. The above Picture shows a TKS router. Yours is probably a Motorola since you have cable. Once this one is working connect your computer to the second router and turn off the DHCP feature, which is AUS for off in German. After you have done that, connect the TKS reouter to your first router with a CatV network cable only connecting to the switch ports between them. Do not use the wan port at all on your TKS router. Once you have done this, you should be able to connect your computer to the TKS router and connect to the web. After you get that part working, you can then go configure the wireless on your routers and everything should work. If you can't figure this out, pm me and I will set up some time where I can remote in to help you configure the TKS router.