C3000-100NAS so slow getting config pages

[spamsucks]

I have bought and configured a C3000-100NAS for my home network. It takes forever to load any of the config pages for the router, including some of the attempts timeing out on my local network. Right now I am cfonnected to a switch that connects to the router, but I tried connecting to the router directly with a laptop wired and get the same issue. The internet speeds are fast, however there is some lag in some sites (like this one oddly enough) 

I have tried:

using different browsers

rebooting the modem and the computer

clearing cache on both computers

One computer is windows 10 the other is windows 7

I would just like to be able to go through the settings in this router to see whats what, and I cannot access anything as the pages keep timing out. 

Any assistance would be great. 

Thanks

[spamsucks · Accepted solution]

At this point, the wifi is inaccessable by any device in my house. I can see it, however when I try to connect to it, it asks me for the password, then disconnects. 

[spamsucks]

in addition, I keep losing the wifi for thgis device. It was working last night, and today... then it drops everyone connected and keeps asking us for the wifi password again... and wont take it. 

Did I get a dud? Should I just return this thing?

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[spamsucks · Accepted solution]

At this point, the wifi is inaccessable by any device in my house. I can see it, however when I try to connect to it, it asks me for the password, then disconnects.