I have a deco x20 and it just refuses to connect. It says the ISP username and password is incorrect, but the ISP folks insist that is not the case. I also used the same username and password to log...

I am having the same problem, but with the Deco X 20. The ISP folks have said the username and password is correct, but the Deco x20 just refuses to connect. Such a disappointment.