[Sephiroth]

This is the problem with Powerline devices (which I also use and don't get mmore than around 50 meg from them wired).

There is an acid test to perform. Put two Powerline devices adjacent each other into a double wall socket. The master goes to the router; the slave to your PC.

Then see if speed rises.

Let us know and we'll take it from there.

EDIT: For woieless, TP-Link are naughty in not saying in their data sheets/manuals what the WiFi standard is. I suspect it's 802.11b/g/n. Exactly which model Powerline is it?