This document explains how to fix “The server you are trying to access is using an authentication protocol not supported by this version of Office 2016/365/2013/2010″ has occurred if it is not working correctly or throwing an unexpected error while installalling or reinstalling office. This solution applies for Office Home, Office Personal, Office University, Office Academy, Office for business, Office Professional, Office Professional Plus, Office 365, Office 2013, and Office 2016.

The error generally occurs while installing Office, Upgrading office, Opening Office, launching Office, removing/uninstalling Microsoft office or while applying windows updates. This error applies to all Microsoft office Products (Word, Excel, PowerPoint, Outlook, OneNote, Access, Project, Publisher, Visio, Infopath) and the error generally occurs in Windows 10, Windows 8, Windows 8.1, Windows 7, Windows Vista, Windows XP and other Microsoft Windows Editions.

The server you are trying to access is using an authentication protocol not supported by this version of Office Error Code Log
Avg. Time to Resolve Issue   45 mins
Difficulty Very Hard
Log Name: Microsoft Office <version> 4.12
Source: Application Error
Event ID: 8794
Task Category: (675)
Level: Administrator
Also known as The server you are trying to access is using an authentication protocol not supported by this version of Office fehler code, foutcode, fejlkode , code d’erreur, codice di errore , feil kode, cod de eroare, código de error
Description:
  • Faulting application name: Microsoft Office <Application name>, version: 3.0.2897.37144, time stamp: 0×57843071
  • Faulting module name: Office event.dll, version: 2.2.4552.92965, time stamp: 0×44315519, time stamp: 0×29623758
  • Exception code: 0xe09b563f
  • Fault offset: 0xb07g839a
  • Faulting process ID: 0×607
  • Faulting application start time: 0x03ccaa1a35046439
  • Faulting application path: ~<userpath>
  • Faulting module path: ~C:\Program Files (x86)\Microsoft Office\<appname>
  • Report ID: e9f59e92-5814-44e1-8656-4174cde1e324
Table of contents

Symptoms of Error Code

  • You will get an Error Message while opening/installing Ms Office. The error may look like “The server you are trying to access is using an authentication protocol not supported by this version of Office“.
  • Slow down overall Windows speed
  • MS Office Applications will stop.

Cause of the Error

  • Corrupt Core Ms office files
  • Internet connectivity issue
  • System DLL files conflict

How to fix ErrorThe server you are trying to access is using an authentication protocol not supported by this version of OfficeHas Occurred

Disclaimer
The steps given below should be followed under the strict supervision of a Computer Expert. We are not responsible if anything goes wrong with your PC following the steps. All the steps given above are indicative and should resolve the problem in most cases.  You can contact our 24×7 technical support for guaranteed resolution of the issue.
Step 1 Temporarily Disable any installed 3rd Party Antivirus:
Sometimes Antivirus/Malware/Adware programs mark Microsoft office installer files as Spam and block it from installing. Please refer your vendors’ website for disabling it temporarily. Once the installation is done you can activate it again.

Step 2 Check System Integrity:
1. Hold Windows Key + R. Run Dialogue Box will open up.
2. Type CMD and Click OK.
open command prompt3. In command Prompt Copy following commands (Simply select the command and hold Ctrl+C and press Ctrl+V in command prompt)

 sfc /scannow 

sfc scannow
The system will take some time to check. Let it run for a while. If it finds any issues in “system” integrity it will automatically fix it.
Note: You will need Administrator Access to Run the above command. Simply Right Click on cmd button and select “Run as Administrator

 You can contact our 24×7 customer support for any help during the whole process. 

In most cases ‘the server you are trying to access is using an authentication protocol not supported by this version of Office’ error code should be resolved by following above steps. If however the issue still persists it means there is some critical issue with your system which needs to be fixed manually and is recommended to be done by an experienced Computer Technician.

You can chat one-on-one with one of our Technical Support Representative 24/7 by clicking on the Chat button.

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Last Updated: 26/02/2016
Solution ID: 671311

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