Can you try to access as the service account and directly browse that path, if it prompt for a password, than that could be what is preventing it. Possible workaround it would be add a credential manager to the network path. Control manager > credential manager > windows credentials > Add a windows credential > Add "Brasil" for the network address( if that doesn't work try again with "\\Brasil") > user name and password> try again.
Giuseppe Novello Principal Technical Support Engineer @ Qlik
Well, nothing in Qlik side, Control Panel is a feature in Windows OS, you can simply open windows search and type control panel, I would highly encourage engage your system administrator for help, since he should know where is control panel is.
Anyways, here is different ways to get to control panel: