Then you did not create it correct. Did you use the command or did you do it manually.
and did restart windows afterwards?
( I assume that it is not only the device toolbar where they are missing, but everywhere. like dropdown too, and that you can not access it even if you tell it to go to that path.
If it is only the they are missing in the device toolbar, but you can access them.. then you have just disabled the network drives in the settings for the device toolbar)