Testing network speed and understanding Mb/s versus MB/s
Network rates are normally shown in megabits per second (Mb/s), while file tools often report megabytes per second (MB/s). Eight bits equal one byte, so 800 Mb/s has a theoretical ceiling near 100 MB/s before protocol overhead.
One public speed-test server is not a capacity measurement. Compare several nearby and remote endpoints, repeat at different times, and check CPU use while testing. For controlled testing between systems you operate, use iperf3 with multiple streams only when appropriate.
Include the tool, endpoint, direction, IP family, timestamp, and full result in a support ticket. Do not run sustained high-rate tests that exhaust the selected monthly traffic allowance.