I have had 6 chats and the retail exchanged my Hitron saying only XB6 will work, and my wired connection 95 max, wireless desktop 175.
Last tech says my router has been unbridged, but is still working with better speeds than XB6.
Now I have to wait till Tuesday morning for a tech visit, what is happening, should never have tried power as since it has been crap.
Wired connection max of 95 max indicates an issue with your network cable or the device your are connecting, it's network adapter is only 100 mbps.
100 mbps link results in 95-96 usable. A network cable that has 4 wires instead of 8 would result in a 100 mbps link. Otherwise the adapter is only 100, or it has been forced to 100 mbps.
Wireless testing.. Way too many variables to give any useful advice.