Usually this message is displayed when there is a communication or login error between your phone/tablet and StellarMate. A popup notification would show the exact error. Try to check the following steps:

I. Login Issues

1. If the reported error is about authentication:
   1. Go to Settings tab --> Reset App.
   2. Restart App
   3. Sign in
   4. RESCAN for StellarMate
   5. Connect Again
2. If #1 does not solve the authentication issue then login to StellarMate Via VNC and launch StellarMate Tools app on the desktop then click Reset EkosLive. Reboot stellarmate.

II. Communication Issues

1. If you have Mobile Data enabled on your phone, then disable it as this might interfer with your connection to StellarMate Hotspot.
2. Double check you are fully connected to the hotspot, sometimes Android/iOS do not fully connect, check network settings for any warnings. If possible, click Keep This Connection.
3. Check if you can reach StellarMate WiFi using your tablet browser. Open the browser and then go to http://10.250.25.1 You should see StellarMate Dashboard if all connection is OK.
4. If no response at all after reboot (i.e. not hotspot created), try to connect HDMI cable to the mini-HDMI port closest to the USB-C power port and connect it to an external monitor. Do you see any messages? Please send a screenshot to support.
5. If all above fails, you can try re-flashing StellarMate OS image unto the SD card (or a new SD card).

If the StellarMate App seems to be stuck on the authentication step, sometimes simply tapping stellarmate again should resolve the issue.