dr marten usa Need new router should I go ac or n router

Hello, I am looking for a new router to replace a Westell model: A90 750022 07. It was the router sent to me by my internet provider Century link. I called them early to find out if I could use a third party router instead of theirs because the range isn’t that good and was told yes. I have looked at the new ac type routers and they are very appealing and seem like they would fit my home needs. We have two laptops,
dr martens for kids Need new router should I go ac or n router
and three tablets plus two smartphones not including two smart blu ray players on our network. When viewing netflix or some YouTube videos we experience lag and dropout because of range issues. I need the router to be able to connect to a phone jack in order to access our internet services. Also with me and my wife both in college we need this router to have excellent connection without lag or dropouts causing some pages not to display correctly for school assignments. None of these units are gateways that include a DSL modem they are all just routers. Does you budget allow for buying AC adapters? Note that there is only one actual AC1900 wireless adapter and it is for desktops. If you just use the N, you can save a lot by buying an ASUS RT N56U dual band N router that has excellent range. Dual band N will also give you more radio channels using the 2.4 and 5GHz to share the bandwidth load. But with 5GHz N you also have the issue of whether your current adapters can use it or if you need new adapters on your devices.
dr martens for kids Need new router should I go ac or n router