I was wondering why my router is restricting my internet speeds. Using the router, I am getting DL speeds around 5882 Kbps while connecting directly to my modem I get DL speeds of around 14533 Kbps. This router is about 9 years old. Is there a limit built into the router or is it just starting to feel it's age? The unit has the latest firmware. Is buying a new unit my best option?