I have a Telkom fibre line with speed supposed to be 25 mbps up and it seems 5 down (although I requested 25 down as well). If I test the internet speed on my laptop (about 3 meters from my WiFi router) I get 25/5 speed. Testing at the same spot with my mobile phone I only get 10/5. Both are using the router's Wifi. I have tested it various times and also used different test programs. What would the reason be for this?