Maybe we need to fix a lot of bug in App 
Can you guys try the wio-cli tool first? It would be more hard core than App 
Reference: github.com/Seeed-Studio/Wio_Link/issues/8
- Install the driver for USB to Serial, download address silabs.com/products/mcu/Pag … ivers.aspx
- Open a terminal
- Install the cli tool as follows: sudo pip install wio-cli (Windows and Linux have to install python first)
- Type wio login and follow the instructions.
- Run wio setup
- Perform the following conversation:
> Setup is easy! Let's get started...
! PROTIP: Hold the Configure button ~4s into Configure Mode!
! PROTIP: Please make sure you are connected to the main server
? Would you like continue? [Y/n]: y
> I have detected a Wiolink connected via USB.
> No nearby Wiolink detected.
? Would you like to wait and monitor for Wiolink entering configure mode [Y/n]: n
>
Quit wio setup!
? Would you like to manually enter your Wi-Fi network configuration? [y/N]: y
> Please enter the SSID of your Wi-Fi network: DeBruijnFritzBox
> Please enter your Wi-Fi network password (leave blank for none): bdboksdoorn30
> Please enter the name of a device will be created: WIO_01
> Here's what we're going to send to the Wiolink:
> Wi-Fi network: [ssid here]
> Password: [your pass here]
> Device name: [whatever you like to call it]
? Would you like to continue with the information shown above? [Y/n]: y
> Send Wi-Fi information to device success.
> The Wiolink connect to main server success.
> Set Wiolink name success.
> Configuration complete!