I experience the same issue ever since I began renting a modem gateway device on my business internet connection with Comcast. Worked great when I was allowed to use my Arris modem gateway device when I had a residential account. Please note, I only get 75 down and 15 up. No change in speeds either switching from res to biz.
@jimellis888 Have you resolved your issue? Does your PSK have a special character?
There was a post were a user was unable to connect his controller to his wifi because his PSK have a special character in it.