First: right User and Password?

Second:
There may be a similar problem, I had with Pirelli-router: When I tried to login nothing happens.....but then I've seen that the content of URL-Line in OWB has changed. Here I deleted the last entry, pressed Enter and it works!

eg:. in my case:
1. after first attempt to login URL shows: http://10.0.0.138/ui/login
2. deleted 'login' and pressed Enter

User and password is correct. I have used this wifi for years. It works with AROS etc.

I will take a look at suggestion #2.

Ok, I found where I had done wrong. I had to directly put in the correct name and password in the quick setup and patiently wait for the router to accept the input (takes about 30 seconds to 1 minut). Up until now I have tried to connect directly via WiFi without any success. At least the WiFi part shows what settings all surrounding WiFi's are using so I don't have to guess.

And it's pretty fast too