GASMO authentication issue with Google Drive disabled users.

9 December 2015
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Description:
Users of Google Apps Sync for Microsoft Outlook (GASMO) version 3.8.430.1200 who also have the Drive service disabled will be continuously prompted to re-authenticate.

How to diagnose:
The Drive service will show as ‘Off’ on the affected user’s overview page within admin.google.com.

When the user attempts to sync using GASMO the dialog box ‘Please sign-in to Google Apps Sync’ will be displayed. After successfully signing in the dialog will continuously re-appear.

Workaround:
There are two workarounds:
1. Enable the Drive service for GASMO users. To do so please see the Help Center article ‘Turn Drive on or off for users’ at https://support.google.com/a/answer/6115117.
2. Disable GASMO Notes sync. To do so please see the Help Center section ‘Disable sync for a specific product’ at https://support.google.com/a/answer/1041455. Specifically the registry keys that should be created are the following:

HKEY_CURRENT_USER\Software\Google\Google Apps Sync\DWORD:SyncFlagsEnabled with value 1
HKEY_CURRENT_USER\Software\Google\Google Apps Sync\NotesSync\DWORD:DownloadEnabled with value 0
HKEY_CURRENT_USER\Software\Google\Google Apps Sync\NotesSync\DWORD:UploadEnabled with value 0

Note that if you are running a 32-bit version of Outlook on a 64-bit installation of Windows the registry prefix will instead be HKEY_CURRENT_USER\Software\Wow6432Node\Google\.

Latest Update:

Time: Wed, Dec 9, 2015 at 1:43 AM – The Google Apps product engineering team is currently investigating this issue.