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Updated 2026-10-27

SunFounder GalaxyRVR: the app keeps disconnecting

Researched by Riley Hart · based on SunFounder GalaxyRVR build guide and docs · we may earn a commission

Short answer

Your phone leaves the rover's Wi-Fi because it has no internet, or another network on the same channel interferes. Start with this: When your phone says No internet, tap Stay connected.

Why it happens

Your phone leaves the rover's Wi-Fi because it has no internet, or another network on the same channel interferes.

How to fix it

  1. When your phone says No internet, tap Stay connected.
  2. Turn off Wi-Fi assist on iPhone or smart network switch on Android.
  3. Change the rover's Wi-Fi channel: join GalaxyRVR, open 192.168.4.1 in a browser, pick a new channel on the AP page (try 3, then 5), then tap Reboot on the Base page.

Check the step it comes from

SunFounder GalaxyRVR step 47: Join the rover's Wi-Fi
Step 47 of 49

Join the rover's Wi-Fi

In your Wi-Fi settings join GalaxyRVR. The password is 12345678. When it says No internet, tap Stay connected.

Check: Connected to GalaxyRVR.

Common mistake: Switching back to home Wi-Fi when the phone says No internet. Tap Stay connected.

See this step in the full build guide

Still stuck?

Show the AI coach a photo

Open step 47 in the free build tool, tap Stuck and take a photo. The coach checks it against that exact step and tells you what to change. 3 free questions per kit.

Open step 47 →

Other GalaxyRVR problems

No camera picture in the appThe ESP32 CAM is in its adapter the wrong way, its ribbon is loose, or the camera is not getting power.The GalaxyRVR Wi-Fi does not show upThe rover is in upload mode, the battery is flat, or the camera board is not powered. The camera board makes the Wi-Fi.The app sees the Wi-Fi but will not connectCustom code uploaded to the board replaced the rover's own program, or the camera board firmware is old.A wheel spins the wrong wayTwo motor plugs are swapped.One wheel does not turnIts plug is not fully in, or its wire got caught and snapped.No lights when charging or switching onThe battery plug is loose or the battery is flat.

All 12 GalaxyRVR problems and fixes · The full build guide

SunFounder GalaxyRVR Mars Rover Kit$129.99 at SunFounder. Every part and tool in one box.
See it at SunFounder store

Sources

Drawings by robotsforthat. SunFounder GalaxyRVR is a trademark of SunFounder. We are not affiliated with SunFounder.