networklocation corrupt icon change to white paper

For our colleagues we made a network locations to SharePoint.

some colleagues are complaining about corrupt networklocations. The networklocation icon changing to a white paper and is doing nothing.

i did try to reproduce the problem but i wasn't able. the next morning when i opened my pc an networklocation was corrupt.

the only fix i know is removing the networklocation and add it again.

this way i made the network location

http://support.microsoft.com/kb/2616712

1. Sign in to the SharePoint Online site by using your Office 365 credentials. Make sure that you click to select theKeep me signed in check box.
2. Open a document library in Explorer View. For example, follow these steps:
   1. From your Team Site, select Shared Documents.
   2. Under theLibrary Tools section in the Ribbon, click theLibrary tab.
   3. In the Actions group, click Open with Explorer.

i did copy the URL and did use the URL to make a networklocation.

we are running windows 8.1 and office 2013.

internet explorer 11

trusted websites

and remember login is on

Kind Regards,

Arie Guijt