2.4 GHz Wi-Fi performs better than 5 GHz Wi-Fi on my computer.
2.4 GHz Wi-Fi performs better than 5 GHz Wi-Fi on my computer.
The issue is clear—concrete barriers are affecting the signal. You’ll notice a big drop in 5GHz strength when measured in dBm. For optimal performance, aim for around -60 to -50 dBm, though that requires being close to the router. As you move into the mid-70s to -80s, the connection becomes very slow or drops completely due to packet loss. This happens because WiFi signals behave more like a toroid than a sphere, thanks to the directional antennas. You might try adjusting the orientation of your computer case or shifting the router slightly left or right. Given the router’s placement, switching to TP-Link powerline adapters could be a better option. They use your home wiring as a data path via Ethernet cables, functioning more like modems than Wi-Fi. Performance varies with your wiring condition, but results can range from 100 Mbps to 650 Mbps. It’s still much better than typical WiFi and reduces packet loss significantly.
These adapters lack built-in WiFi APs, though some include them. They function more like modems—using a codec DSP chip for digital signal processing.
All settings were applied automatically with the default channel width. I'll reset channel selection to automatic later. The WiFi analyzer chart will be delivered once I'm connected to the PC.
Powerline adapters transmit through electrical wiring. However, outcomes differ based on cable length and the condition of connections from outlet to fuse panel back to another outlet. Optimal performance occurs when adapters are in the same or adjacent rooms sharing the same circuit. Signals weaken more if outlets belong to separate circuits, especially due to increased cable length. The age of the home and whether the wiring is aluminum or copper also play a role, as aluminum tends to oxidize and has higher resistance, potentially further diminishing signal quality.
For better performance, consider using a wired setup with a WiFi access point at the end. Adding a second Ethernet cable keeps the PC connected while maintaining a wired connection. You can also use routers that support Access Point mode with a single cable, which often include built-in switches. I favor a dedicated Access Point because it’s optimized for its role and works more reliably than a router, especially when you can run two Ethernet cables back to the main router.
Visit the TP-Link home networking powerline page for more details.