Hi all. I am currently paying for vivid 150 and am getting 150Mbps plus on my main pc which is hard wired about 1 meter from the router.This is obviously great but my problem is with my android tv boxes which both have hard wired connections -one approx 25 meters and t'other about 10meters from router.They both struggle to get 20Mbps.I also have a wireless laptop and 2 wireless pcs which also struggle to achieve 20Mbps.I must emphasize that these speeds are the same when all the other gear is switched off. Are there any settings on the router-its a super hub 3-that can improve this?
In regards to the Cat 6 cable you are using, it is up to you if you want to try a new cable to see if that will help. However you are getting the correct speeds on your PC, so it might not be the cable itself at fault.
Did you mange to try a speed test whilst in modem mode at all?