WiFi signal and roaming

Network Weather keeps an eye on your WiFi and can nudge you toward a better access point when one's available.

Signal strength

WiFi signal is measured in dBm. The numbers are always negative. Closer to zero is stronger.

Signal	Quality	What to expect
-30 to -50 dBm	Excellent	Full speed, no issues
-50 to -60 dBm	Good	Solid for everything
-60 to -70 dBm	OK	Fine most of the time, may wobble under load
-70 to -80 dBm	Weak	Slower, video calls might drop
Below -80 dBm	Very weak	Unreliable, expect frequent drops

You can see your current signal, channel, and WiFi version (5, 6, 7) in the Link on the network map.

"Stronger access point nearby"

If you have mesh WiFi, range extenders, or multiple access points, the app scans for nearby ones and compares their signal to yours.

When it finds a much stronger one on the same network, a banner pops up offering to switch. Click it and you're on the better one. If that access point turns out to have no internet, the app switches you back automatically.

On UniFi systems with router login set up, the banner shows the access point name (like "Living Room AP") instead of a technical ID.

"Better network available"

The app can also tell when a different WiFi network nearby would be faster. If you're stuck on a guest network and your home WiFi is in range, it'll suggest switching.

Weak signal warnings

If your signal stays below -70 dBm for 30 seconds, a banner warns you. The idea is to let you know before you start noticing dropped calls or buffering.

If you see this warning a lot:

• Move closer to your router. Simplest fix.
• Add a mesh node or extra access point to cover the dead spot.
• Check for interference. Microwaves, baby monitors, and some Bluetooth gadgets mess with the 2.4 GHz band. If your router supports 5 GHz or 6 GHz, try those instead.
• Try a different channel. If your neighbors' WiFi overlaps with yours, switching channels can help. Run Check My Network before and after to see if it made a difference.

Channel and protocol info

When on WiFi, the Link also shows:

• Channel: Which radio channel your router uses. On 2.4 GHz, only channels 1, 6, and 11 don't overlap with each other. 5 GHz has more room.
• Protocol: WiFi 5, 6, 6E, or 7. Newer versions are faster and handle crowded networks better.
• Noise: Background radio noise on your channel. High noise plus weak signal is a bad combo.

Hotel and airport WiFi

When you connect to WiFi that needs a web login (hotels, airports, coffee shops), the app spots it and gives you a direct link to the login page. No more waiting for a redirect that never comes.