Router problem?

im not trying to be smart or nasty saying this but that router isnt up to much tbh, the problem is the router gets clogged over time causing the crashes.
I had the same problem with a tp link wdr3600 it would run fine for a few days but then would loss internet, the lan end was fine, after further investigation i discovered my router was only rated for up to 8 machines
that sounds a lot but when you count up everything thats connecting in your house and throw in downloads and streaming you can see why they lie down.
The solution was to build my own router using ipcop, you just need an old pc and an extra ethernet card and a switch, i use a 8 port giga one, you can then connect your router to all that as an access point.
I can post pictures of my frankenrouter setup if you want and offer some of my limited knowledge in setting it up