Ubuntu Local Network Share - Failed to mount Windows share: Permission denied
Solution 1:
The two most common causes of your error message are:
[1] You are not passing the samba password when asked for the "registered user" credentials.
You create that password by adding the user to the samba password database - and I will use my own as an example:
sudo smbpasswd -a morbius
[2] Since the share that was created allows guest access the more likely case is the path to the shared directory does not allow access to the shared folder. The shared folder itself may allow access to guest but the path to that folder may not. For example if the folder is mounted to /media/morbius/Media then only morbius will have access to Media.
I would suggest that you edit your original question and add to it the output of the following command so the folks here can see where the folder is located:
net usershare info --long