Hi everyone,
I installed Raspbian for robots on Gopigo3. I connected to the robot using Ethernet cable (http://dex.local then VNC icon) then connect the robot to the home wifi and made all the updates and upgrades. However, when I disconnected the cable and tried http://dex.local it does not work. I also tried using the wifi of the my phone but does not work. Can anyone help? Thank you
Hello @Amraba
When you are connected via Ethernet and you can connect via VNC, please open a terminal window and type
ifconfig
Look at the line that says wlan0, and find the IP address as per this image:
You should be able to connect to your robot using the IP instead.
http://192.168.0.176 for this image.
it seems your home network does not allow for discovery by name on the wifi network.
Hi @cleoqc,
Thank you very much for your response. I spent all the day trying to connect, finally I just find the problem : it was my Kaspersky that blocks the connection… 
Thanks again
Great! Good to know about Kaspersky. Thanks for letting us know.