LIFX lights use the LIFX Cloud for remote control, syncing across devices, running schedules, and supporting integrations. If your lights work locally but appear offline, or cloud features don’t behave as expected, check that your network meets the requirements below.
1. Your light must be connected to a 2.4 GHz Wi-Fi network
All LIFX lights use 2.4 GHz Wi-Fi to stay connected to the cloud.
Make sure 2.4 GHz is:
enabled
not hidden
using standard channels (1, 6, or 11)
Lights cannot connect to 5 GHz networks.
2. Your network must allow outbound internet access
LIFX lights need uninterrupted access to the internet.
Your router should allow:
Outbound HTTPS (port 443)
Secure MQTT traffic
Standard DNS requests
Most home routers allow this by default.
Cloud issues can occur if:
parental controls are enabled
custom DNS filters are active
outbound firewall rules are applied
SafeSearch/content filtering is enabled
“Block IoT internet access” features are turned on
3. Your phone and light must be on the same LAN during setup
Once setup is complete, the phone and light do not need to stay on the same network for cloud control — but they must match during onboarding.
If you changed Wi-Fi:
new SSID
new password
new router
Reset the light and set it up again.
4. Avoid Guest Wi-Fi or networks with device isolation
Guest networks often block:
local discovery
cloud communication
device → device communication
Ensure your LIFX lights are on your main home network, not a guest SSID or isolated IoT VLAN unless mDNS forwarding is configured.
5. Make sure your network isn’t blocking secure outbound connections
LIFX Cloud needs standard outbound internet access to stay online.
Strict firewall rules, security filters, or DNS limitations can block cloud communication even if local control works.
Your network should allow:
outbound HTTPS (port 443)
standard DNS
secure MQTT traffic
If you use parental controls, content filtering, or custom firewall rules, try relaxing them temporarily to see if cloud access returns.
6. Make sure your internet connection is stable
Cloud features may appear offline if:
the internet connection drops briefly
you’re experiencing packet loss
your ISP is experiencing DNS issues
the router is near max load
heavy traffic saturates Wi-Fi or WAN bandwidth
Restarting your router often resolves these issues.
If you still see cloud issues
Check these troubleshooting guides next: