Does that mean that if i add a router, whatever kernel and kernel-modules i use,
should "see" the router?
That is what i have expected, and i was puzzled that it could not see it. Took me a while to decide to boot into a different environment, and there it worked right away.
It is not that i would plug in a new router twice a week. When i made the kernel, the actual router was in place. Hence i am not sure what i am supposed to see.
Ups: You edited your post:
//edit: so you can't get to the router's configuration page using your custom kernel? But you can with the stock kernel? That honestly makes no sense...
Good. In that case i have to investigate it different. I assumed that would be the problem, but probably have overseen something else
(i used epiphany, without any plug-ins, so i would not be sure what might be the problem).