set up your WiFi

your router, your WiFi

sprfst provides your internet connection to your router’s WAN port. Everything from that point — WiFi network name, password, band selection — is managed through your router’s own admin interface, not through sprfst.

logging into your router

Connect a device to the router (via WiFi or ethernet cable)
Open a browser and go to your router’s admin address — usually 192.168.1.1 or 192.168.0.1
The username and password are printed on a sticker on your router (commonly admin / admin or admin / the serial number)

changing your WiFi name (SSID) and password

Inside your router’s admin panel, look for Wireless or WiFi Settings. You’ll see fields for:

SSID — your network name (what appears in the list of available networks)
Password / Security Key — the password devices use to connect
Security type — always use WPA2 or WPA3 if available

Save the settings. Your router will briefly restart its WiFi radios and devices will need to reconnect with the new password.

2.4 GHz vs 5 GHz

Most modern routers broadcast two bands:

2.4 GHz — longer range, better through walls, slower maximum speed. Good for IoT devices and things far from the router.

5 GHz — shorter range, much faster, less interference. Best for phones, laptops, and TVs that are close to the router.

If your router supports it, enable both bands with different names (e.g. homenet and homenet_5g) so you can choose which band each device connects to.

Wi-Fi 6 (802.11ax) routers also support a 6 GHz band on some models, offering even lower latency for compatible devices.

getting better WiFi coverage

Place your router in a central location, elevated, away from walls and metal objects
Avoid putting it inside cabinets or behind TVs
For large homes, consider a mesh WiFi system (e.g. Eero, Orbi, TP-Link Deco) — multiple nodes that form a single network across the whole house
For the best speeds to a single device (desktop, TV, gaming console), use an ethernet cable instead of WiFi

WiFi is slow but internet is fine

If a speed test on an ethernet-connected device is normal but WiFi is slow, the issue is your WiFi setup, not your internet connection. See WiFi issues for a step-by-step guide.