- You publish a SharePoint site through the Web Application Proxy role service on a server that's running Windows Server 2012 R2.
- On a client computer, you open SharePoint and then log on through Web Application Proxy.
- You open an Office document and make some changes.
When you try to save the Office document in this scenario, the save operation fails. Additionally, you receive an indication that there was an error accessing or uploading to the disk.
Hotfix informationA supported hotfix is available from Microsoft Support. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, go to the following Microsoft website: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
Restart requirementYou may have to restart the computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace any previously released hotfix.
Related Office fixesWe recommend that you also install the following related Office updates. These updates address some issues in which the Office Sign-In button does not work as expected after the MS-OFBA token expires.
December 9, 2014 update for Office 2010 (KB2889818)
Important After you install these related Office updates, you must add the following value to the registry:
DWORD name: RefreshFormBasedAuthCookie
DWORD value: 00000001