Concrete walls and metal roofs are tough on WiFi. You can often improve coverage without changing your internet plan.
Start with placement
- Put the router high and central — not on the floor or behind the TV.
- Avoid enclosing it in a cabinet.
- Keep antennas vertical unless the manufacturer says otherwise.
Use the right band
2.4 GHz travels farther through walls. 5 GHz is faster but shorter range. Put distant devices on 2.4 GHz and nearby devices on 5 GHz.
When one router is not enough
Large homes may need a mesh system or an extra access point. If the wired speed is strong but rooms stay weak, the bottleneck is WiFi coverage — not your AIO line.