54mps sounds like your wireless connection speed between your pc, and your router. i doubt you'll be getting a solid 54mps from your ISP.
go to speedtest.net. run a test. whats your results?
then try connecting pc direct to ethernet (wired), and see what changes.
also on a side note, trendnet makes garbage, stay away from them.
I did the Speedtest and it says I should be getting 28Mbps - still lower than what the ISP promises. With an ethernet connection it is also slow.