Why Does My JellyFish Lighting Controller Keep Going Offline?
- Unstable 2.4GHz signal causing intermittent drops at the controller location
- WiFi extender used during installation has lost its own network connection
- Router DHCP lease expiring and reassigning a different IP to the controller
Problem Description
The JellyFish controller connects to WiFi intermittently but repeatedly drops offline throughout the day or night, causing the Cloud App to lose control of the lights even though the lights themselves continue running the last scheduled pattern.
Symptoms
- Cloud App intermittently shows controller as Offline even while lights are running
- Scheduled patterns run correctly but manual color changes via app fail when controller is offline
- App reconnects sporadically — sometimes working, sometimes not
- Controller display shows WiFi connected but Cloud App still reports offline
- Lights go dark or freeze on a pattern when the controller loses cloud connection
Recognize these? Here's what usually causes it.
Common Causes
- Unstable 2.4GHz signal causing intermittent drops at the controller location
- WiFi extender used during installation has lost its own network connection
- Router DHCP lease expiring and reassigning a different IP to the controller
- JellyFish Cloud App and cloud server communication issue (separate from local WiFi)
- Power fluctuations causing the controller to reboot unexpectedly
- Interference from neighboring 2.4GHz networks on the same channel causing packet loss
Most fixes happen in the first 3 steps.
Do not reset the controller to factory settings as a first step for intermittent offline issues — you will lose all zone configurations, schedules, and patterns and will need your dealer to reprogram them. Only perform a factory reset if explicitly recommended by JellyFish support.
Tools & Requirements
Step-by-Step Solution
Distinguish Cloud Offline from WiFi Offline
If the lights are still running a schedule but the app shows offline, the controller likely has local WiFi but the cloud connection is interrupted. This is a different fix than a WiFi dropout — check the JellyFish service status or try reopening the app.
Check Controller Uptime on Front Panel
The Pro 2 controller front panel shows uptime and network status. If uptime resets frequently (shows short values), the controller may be rebooting due to power issues or overheating.
Inspect Power Supply
Ensure the controller is plugged directly into a wall outlet, not a power strip or extension cord that may be causing voltage inconsistency. The controller requires a stable 115V AC input.
Contact Your Dealer for Signal Survey
JellyFish authorized dealers can perform a site survey to measure actual signal strength at the controller location and recommend the right extender placement or hardware upgrade.
Quick Solutions
Still having issues? This is usually the deeper cause below.
This usually happens right after a router reboot or ISP change — the device rejoins the network but drops its cloud session silently.
Intermittent offline issues are the most common post-installation support call for JellyFish systems. The majority resolve by either replacing or repositioning the WiFi extender, or by setting a static IP reservation on the router. Most authorized dealers will assist with this at no charge within the warranty period.
Most WiFi drop-offs happen right after a router reboot or ISP swap — the device reconnects to the network but silently loses its cloud registration.
- Unstable 2.4GHz signal causing intermittent drops at the controller
- WiFi extender used during installation has lost its own
- Router DHCP lease expiring and reassigning a different IP
- JellyFish Cloud App and cloud server communication issue (separate
- Power fluctuations causing the controller to reboot unexpectedly
Before you go — try one of these (they fix most cases).
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Need More Help? JellyFish Lighting Support
Note: The contact information below connects you directly to JellyFish Lighting's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.