Can't connect to own Ubuntu-created WiFi hotspot

I followed this guide to create a hotspot:

Create WiFi hotspot on ubuntu

I go through all the steps but when it comes to the end, connecting my laptop to the hotspot, it does not work.

I have tried connecting to a hidden WiFi network but this also does not connect.

Can anyone help?

$ lsb_release -a
    Distributor ID: Ubuntu
    Description:    Ubuntu 15.04
    Release:    15.04
    Codename:   vivid

$ uname -a
Linux mylinux 3.19.0-28-generic #30-Ubuntu SMP Mon Aug 31 15:52:51 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

/etc/NetworkManager/system-connections$ sudo cat android-wifi 
[connection]
id=android-wifi
uuid=af9a2d23-c1e4-409d-a80e-d8c8271ba291
type=wifi

[wifi]
ssid=android-wifi
mode=ap
mac-address=A0:A8:CD:6F:0C:34

[wifi-security]
key-mgmt=wpa-psk
psk-flags=1

[ipv4]
method=shared

[ipv6]
method=auto
ip6-privacy=0

Solution 1:

I found the answer.

After following the guide and before enabling WiFi, restart the Network Manager with:

sudo service network-manager restart

Then enable WiFi and it should connect.

Solution 2:

I too face same problem that you had I and I solved by.
Going into system settings; Click the Network Icon -> Edit Connections -> Select your Wifi Network (In your case select android-wifi ) -> Click Edit.

A dialogue box opes like this.
Make sure you have checked Automatically connect to this Network...

After that Restart your computer.

Your Wifi Network is now available to use.