How Do I Reconnect My JellyFish Controller After a Router or ISP Change?
- New router uses a different SSID (network name) than the previous one
- New ISP provided a different router with a different default WiFi password
- Router was replaced after failure and the new one has a different network configuration
Problem Description
After replacing a router, switching internet providers, or changing WiFi network credentials, the JellyFish controller can no longer connect to the new network because it still has the old WiFi settings stored in memory.
Symptoms
- All lights went offline immediately after router replacement or ISP changeover
- Cloud App shows controller as permanently offline
- JellyFish Cloud App cannot locate or communicate with the controller
- Lights are still physically on and may run a stored schedule, but remote control is lost
- Controller display shows WiFi error after the network name or password changed
Recognize these? Here's what usually causes it.
Common Causes
- New router uses a different SSID (network name) than the previous one
- New ISP provided a different router with a different default WiFi password
- Router was replaced after failure and the new one has a different network configuration
- WiFi password was updated for security but JellyFish controller was not updated simultaneously
- New mesh network system uses a different band configuration than the old router
Most fixes happen in the first 3 steps.
The Designer App hotspot password (bigfish10) is a factory default. If your installer changed it, contact them or JellyFish support at 801-613-7421 to retrieve the current password before attempting WiFi setup.
Tools & Requirements
Step-by-Step Solution
Keep a Record of Your WiFi Credentials for JellyFish
Store your 2.4GHz network name and password in a secure location. When you call your ISP for router replacement or change your password, update the JellyFish system the same day to avoid extended offline periods.
Name Your New Router the Same as the Old One
If you are replacing a router, consider giving your new 2.4GHz network the exact same SSID and password as the old one. The JellyFish controller (and other smart home devices) will reconnect automatically without any reconfiguration.
Designer App vs Cloud App
The Cloud App is for daily use. The Designer App is the setup tool. For any WiFi reconfiguration, you need the Designer App. Both can coexist on your phone, but JellyFish recommends removing the Designer App after setup is complete to prevent schedule conflicts.
Multiple Controllers
If you have more than one JellyFish controller, repeat the WiFi setup process for each one separately. Each controller maintains its own network credentials.
Quick Solutions
Still having issues? This is usually the deeper cause below.
If this comes back after following these steps, check whether a recent app or firmware update reset a default setting — the fix works, but the setting gets reverted silently.
Most homeowners who change their router or ISP do not realize the JellyFish controller needs to be reconfigured because the lights continue running on stored schedules. The loss of remote control and cloud reporting is the only immediate symptom. Budget 15–20 minutes per controller to complete the reconnection process.
Hub disconnections that cycle repeatedly are almost always IP conflicts — two devices fighting over the same DHCP lease after a router restart.
- New router uses a different SSID (network name) than
- New ISP provided a different router with a different
- Router was replaced after failure and the new one
- WiFi password was updated for security but JellyFish controller
- New mesh network system uses a different band configuration
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.