Hi! I'm a tech noob.
Bought a lot of Wifi Router but still the wifi very slow.
Currently using TP Link TD-W8961N on TM Streamyx 8Mbps.

If use with LAN the line is strong. But with wifi the line is super slow.
Even bought Wifi Extension still not working.

Contacted TM guy but still the problem persists already few years. They even ask us to change router and we already change 3 Wifi Router.. still the same problem!

Anyone can assists? thanks