To get an accurate reading you will need to plug a laptop directly into the router. Testing over WiFi can give lower results.
When a WiFi router detects other devices broadcasting a WiFi signal it will back off its data rate performance to ensure Internet packets are delivered and not dropped. When you perform a test it is common for the router to drop back on its data rates and you will see a lower result. This is not always a fault with your connection, (more…)