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MyDolphin Plus App Not Connecting to Dolphin Robot

Dolphin by Maytronics GuideSmart Pool & Spa
easy difficulty 15 minutes 20 views 0 found helpful Where this fix applies: Global (general guidance)
This guide applies to: Dolphin by Maytronics Dolphin Robotic Pool Cleaner (M600, M700, Proteus DX4, S300i, S400)
At a glance — most common causes
  • Outdated app or robot firmware
  • Model has no WiFi capability
  • Power supply needs a power cycle
15 minutes14 solutions coveredeasy level

Expert Review & Technical Scope

DeviceDolphin by Maytronics Dolphin Robotic Pool Cleaner
Model CoverageM600, M700, Proteus DX4, S300i, S400
Fix Time15 minutes
DifficultyEasy
Required ToolsNo special tools required
Network / ProtocolWi-Fi

Problem Description

The MyDolphin Plus app cannot find or connect to the Dolphin robotic pool cleaner. The app shows "Searching for robot" indefinitely or displays a connection error. WiFi-enabled Dolphin models connect to the app via the pool cleaner's built-in WiFi module, which communicates through the power supply unit. Both the power supply and the robot must be powered on and within range for the app to connect.

Why This Happens in Real Homes

A MyDolphin Plus connection problem is usually an app or firmware version, a permission, or a WiFi-module state, and some Dolphin models have no WiFi at all. In real setups Bluetooth and location permissions being off is the quiet blocker, since the app needs them to pair.

Confirm your model has WiFi, update the app, and grant the permissions before resetting the module.

Symptoms

  • MyDolphin Plus app cannot connect
  • App will not find the robot
  • Pairing fails
  • Robot shows offline
  • Cannot control from the app
  • Connection drops
  • Bluetooth pairing fails
  • No WiFi on the model

Recognize these? Here's what usually causes it.

Common Causes

  • Outdated app or robot firmware
  • Model has no WiFi capability
  • Power supply needs a power cycle
  • Phone not on the robot WiFi during setup
  • Bluetooth or location permission off
  • WiFi module in a stuck state
  • Weak signal at the pool
  • Router changed

Most fixes happen in the first 3 steps.

Step-by-Step Solution

1

Confirm your Dolphin model has WiFi

Not all Dolphin models have WiFi. The WiFi-enabled models include the M600, M700, Proteus DX4, S300i, and S400. The Nautilus CC Plus, E10, and basic S-series models do not have WiFi and cannot connect to the MyDolphin Plus app. Check your model number on the label on the bottom of the power supply unit. If your model does not have WiFi, the app will never find it — this is not a connectivity problem, the hardware does not support it.

2

Power cycle the power supply unit

Unplug the Dolphin power supply from the wall outlet. Wait 30 seconds. Plug it back in. The WiFi module inside the power supply takes about 60-90 seconds to boot up and broadcast its connection signal. Wait at least 2 minutes after plugging in before attempting to connect from the app. The power supply has a small LED (on WiFi models) that indicates WiFi status — solid blue means ready to connect, flashing blue means broadcasting, off means WiFi is disabled or the module has not booted.

3

Connect your phone to the robot WiFi network

Open your phone's WiFi settings and look for a network name starting with 'Dolphin' or 'MAYTRONICS' followed by your model number or serial number. Connect to this network. There is no password on initial setup. Once connected, open the MyDolphin Plus app — it should detect the robot within 30 seconds. If you do not see the Dolphin WiFi network in your phone's WiFi list, the power supply WiFi module is not broadcasting. Ensure the robot is in the pool and the power supply is plugged in and powered on.

4

Enable Bluetooth and location permissions for the app

On iOS and Android, the MyDolphin Plus app requires both Bluetooth and Location permissions to discover and connect to the robot. Go to your phone Settings > MyDolphin Plus > Permissions and enable Location (While Using) and Bluetooth. On Android 12+, also enable Nearby Devices permission. Without these permissions, the app cannot scan for the robot's WiFi or Bluetooth signals even if the robot is broadcasting correctly.

5

Reset the WiFi module in the power supply

If the robot WiFi network is not appearing, the WiFi module may need a reset. On most WiFi-enabled Dolphin power supplies, there is a small reset button recessed on the side or back panel — press it with a paperclip for 5 seconds until the WiFi LED flashes rapidly, then release. The module resets and begins broadcasting again within 60 seconds. After resetting, you will need to re-pair the robot in the MyDolphin Plus app from scratch.

6

Update the MyDolphin Plus app and robot firmware

Outdated app versions can lose compatibility with newer robot firmware and vice versa. Update the MyDolphin Plus app to the latest version from the App Store or Google Play. After connecting to the robot, check for firmware updates in the app under Settings > Robot Info > Firmware Update. Firmware updates are sent from your phone to the robot through the WiFi connection and take approximately 5-10 minutes. Do not unplug the power supply or close the app during the update.

Quick Solutions

Update the MyDolphin Plus app and robot firmware
Confirm your Dolphin model has WiFi
Power cycle the power supply unit
Connect your phone to the robot WiFi network
Enable Bluetooth and location permissions for the app
Reset the WiFi module in the power supply
Move closer to the router or pool
Re-pair after a router change

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.

Pro Tip

The MyDolphin Plus app guide is built into the app under Settings > Help. Dolphin user manuals by model at https://www.maytronics.com/support/manuals include WiFi module specifications and reset procedures. The WiFi module is inside the power supply, not the robot itself — if you replace the power supply, you need to re-pair in the app. The robot communicates with the power supply through the cable, so a damaged cable can prevent WiFi features from working even if the robot cleans normally.

Real-World Insight

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.

What Usually Goes Wrong
  • Outdated app or robot firmware
  • Model has no WiFi capability
  • Power supply needs a power cycle
  • Phone not on the robot WiFi during setup
  • Bluetooth or location permission off

Official Manufacturer Manual

Dolphin by Maytronics provides official product documentation through their online manual rather than downloadable PDF. Access setup guides, troubleshooting steps, and product specifications for your Dolphin Robotic Pool Cleaner.

View Dolphin Robotic Pool Cleaner Online Manual

Source: maytronics.com

Need More Help? Dolphin by Maytronics Support

Note: The contact information below connects you directly to Dolphin by Maytronics's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.