Description of the problem:
It's not possible to add a Windows printer.

Steps to reproduce:
1. Have a printer named something like
"hp LaserJet 1320 PCL 5 Printer"
shared from a Windows machine.
2. On Fedora 23 use Nautilus to connect to the Windows share using a domain user.
3. Run
gnome-control-center printers
.
4. Click the Unlock button at the top right of the window.
5. Type the user's local password and click Authenticate.
6. Click the Add New Printer button.
7. Wait 3 minutes.
8. When the list of Windows shares appears scroll down to the machine and select it.
9. Click the Authenticate button.

Expected results:
For step 7. not to take 3 minutes.

Actual result:
Step 7 always takes at least 3 minutes and trying to type a name like //WINDOWSSHARE in the address box at the bottom doesn't work. 

Additional information:
Machines seem to be grouped by workgroup/domain and only then alphabetically. However since the workgroup/domains aren't shown this can make locating the machine difficult. Double clicking the machine icon directly at step 8 will just return a dialog saying "Failed to add new printer" and won't prompt for authentication(!). It would be useful if extra information about the printer could be extracted after it is added (e.g. location).