WiFi "Slow" Only on One Floor
4.5
The internet is 200Mbps downstairs but only 5Mbps upstairs, even with signal bars.
Symptoms
- Speed drop
- Buffering upstairs
- High latency
Possible Causes
- Floor material (Concrete/Metal)
- Distance from router
- Interference
Step-by-Step Fix
1
Angle the Antennas
If your router has antennas, point one horizontally to send signal vertically.
2
Install a WiFi Extender
Plug it in halfway between the router and the slow floor.
3
Switch to 2.4GHz
2.4GHz has better "penetration" through floors than 5GHz.
When to See a Technician
Modern "underfloor heating" uses metal foil which acts as a perfect shield against WiFi signals.
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