How We Tested
We tested all the router configurations – ten in total – exhaustively from eight different positions with three different WiFi clients. The clients used were a new Apple MacBook Pro, which sports 3×3 802.11ac WiFi, an Acer Windows 7 notebook with 2×2 802.11ac WiFi, and an older HP Folio 13 which maxes out at 3×3 802.11n WiFi.
In each case, we used the freely available iPerf 3.1.3 software, which stresses a network by sending packets of random data and measures the throughput. One system acts as a server, and the other as a client, as data is sent between them. In all cases, we used a self-built Windows 10 workstation connected to the routers via Gigabit Ethernet as the server, so that the WiFi was always the slowest connection.
These are the iPerf commands we used:
For the server: iperf3 –s –i 1
For the client: iperf3 –c <IP Address> –P 4 –i 1 –t 60
Note that the client command sends four streams of data simultaneously, simulating a multi-client connection as closely as possible with just one client. It takes 60 throughput readings at one second intervals and then averages the result.
The above diagram shows the layout of the house we used for testing. Note that we didn’t test on the top floor of the house because this was directly above the first floor and wouldn’t have provided much of a range test. Instead, we used two locations on the same floor as the router (the first floor), then more distant locations on the ground floor extending out the back of the house into the garden.
Each test location, numbered in the diagram above, was approximately 5m away from the last one.
Location 1 was very near to the router, around 1m away. The next location – 2 – was around 5m away, with a wall in the way, but on the same floor. Location 3 was on the floor below, so had walls and a floor in between, but was a further 5m away. Location 4 was the last one actually inside the house. Locations 5 to 7 were then 5m further down the garden. Location 8 was ony 2m further down, as this was the end of the garden, but also behind a shed, so posed a significant challenge that only a few mesh WiFi systems could cope with.
We should also say a few words about the location of the satellites. The routers were always placed in the same location, in the first floor study next to the broadband. In the case of three-unit mesh systems such as BT Whole Home Wi-Fi and the top Velop option, the second and third satellites were placed at S1 and S2.
With the two-unit Velop and Google WiFi, the second unit was placed at S1, due to the recommendation of the setup software. However, in the case of the three Orbi packs, it was possible to place the second unit at S2, due to the signal strength from these systems.