I currently have a D-Link DIR-600M router and my laptop has an Intel Centrino Wireless-N 1000 card. https://www.bestadviser.in/best-wireless-routers
My ISP recently increased my speed to 35MB. If I connect to my router via ethernet, I get close to 40Mb, but never over 20Mbs wirelessly. I tried using a AE2500 USB WiFi adapter with no change in speed.I suspect the router as it is a few years old.
Is the problem my router, my laptop's intel card or configuration of one or both?
All help will be appreciated!