Will Adding Coax / Ethernet Extension Kill My Web Speed?

[SteveO]

Thanks, N-OS. I ran AP Utility and NATS was set up wrong, light is now green and everything seems much improved. I also moved the AP about 5' closer to the doorway so now it's in line of sight to my living room sofa (where I work most often). It's close to the doorway and now elevated about 4' on a bookshelf...what a difference thus far - MBP speedtest shows 43 down on first test, 58 on second test and beyond.

iPhone 5s speedtest shows 28, 29 and 37 down on 3 tests. Odd that the phone is so different, but it's double what it was so I'm not too unhappy.