Assuming no change was made to current WiFi settings, and you tested the WiFi discovery with another device let me propose the straight forward....
For testing what is the current connection in your Euclid please open terminal and run command 'nmcli con show'.
The system will return the current connection details, it should be name 'hotspot' and the line should be green.
If that's not the case please run command 'nmcli connection up hotspot'.
That command should start your hotspot.
For restarting the Euclid out of the box service you can run command 'sudo service oobe-init restart-oobe'.
Intel Euclid Development Team