Smart Device "Only Works on 2.4GHz" Setup Issue
4.5
You cannot set up your smart bulb or plug because your phone is on 5GHz and the device needs 2.4GHz.
Symptoms
- Setup failed
- Device not found
- WiFi mismatch
Possible Causes
- Router merging 2.4/5GHz (Smart Connect)
- Phone on wrong band
Step-by-Step Fix
1
Split WiFi Bands
In router settings, give the 2.4GHz and 5GHz networks different names (SSIDs).
2
Move Far Away
Walk to the edge of your WiFi range; 5GHz drops off first, forcing your phone onto 2.4GHz.
3
Disable 5GHz Temporarily
Turn off the 5GHz radio in your router until setup is complete.
When to See a Technician
Most cheap smart devices use old WiFi chips that literally cannot "see" 5GHz networks.
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