Recently upgraded from ADSL to FTTH I have a Netgear Nighthawk R6400 connected Orangebox Router (Orange is my ISP) in order to provide wider range. After installation I ran speedtest and the data was all wrong I was getting 15mb download and 80mb+ upload. This is happening on all PCs and devices. Its way off where it should be. Orange came back, ran some tests and discovered that its the issue is coming from the R6400. Turning off the R6400 and Connecting to the Orange router via WIFI gives me a 100mb download speed as does using a CPL adaptor. So the problem is DEFIANTLY the Netgear, Does anyone know why the R6400 would be bottlenecking the speed. The Orange FTTH engineer says this is common, in his experiance some 3rd party WIFI routers bottleneck the connection, although he was alittle surprised that this was happening with a Netgear. What is to be done? Is there anything I can do with the R6400 or do I need to buy a new router? The Orangebox lacks range for all areas of my house The CPL is too unstable, and D/C all the time. PC is too far for ethernet. R6400 has latest firmware. Can anyone help?