Hello everyone! I am a little confused and I hope y'all can help me out. I have a TP-LINK Archer C9 v.1 router connected to a AV600 Powerline using a Vandesail CAT7 cable. The other AV600 Powerline is then connected to a ARRIS TG1682G using another CAT7 cable. When I connect to my ARRIS router's 5 GHz signal, I get a download speed of 130Mbps which is just a little more than we pay for. When I connect to my Archer C9 and use the 5 GHz signal I get a download speed of just over 10 Mbps. I use the Archer C9 because the ARRIS is the main family router so it's downstairs. All the devices in between my router and the modem including both devices themselves show that they should have no problem relaying that same 130 Mbps speed, so why don't they?