I have a router upstairs and my tp link downstairs on the same circuit board (don't know if that's necessary) and when connected to the tp link the Internet connection is so slow on my laptop it takes at least 5 mins for a page to load. It's even slower on an ipad and a lot of the time doesn't work at all. I think I have set it up right and Its not in the models troubleshooting guide. It says on the box that it should be really fast. Does anyone have any idea why it might be so slow?

Thanks