I'll try doing it in a more bottom up fashion..
What I've found is while I can ping to the router's ip address, I cannot visit it's admin page in any browser on this pc.(while I can from others including windows on the same device)
Not even in text w3m.

I've been saying a lot of different things that seemingly do not exactly pinpoint what the problem is.
I'll diagnose and report back when I find the root of the problem.