2019-11-24 Microsoft Outlook 2011 constantly crashing. Ask Question Asked 6 years, 10 months ago. Active 1 year, 11 months ago. Viewed 16k times 4. I just purchased Microsoft Office 2011 for Mac last week. Microsoft Lync Mac crashes on 10.9 Mavericks. MP3s cause QuickTime to crash - how do I reinstall QuickTime on Mountain Lion? Apr 29, 2018 Skype for Business on Mac Keeps Crashing For a few days now my Skype for Business on Mac (MacOS 10.13.4) has been unusable. I will open Skype for Business and it will load and then crash within 20 seconds.
-->Lync for Mac 2011 (versions 14.0.5 - 14.0.7) crashes on startup for some users. This behavior is noted for existing users and is not fixed by re-installing Lync. Lync may work by logging in as a different user on the same machine. The steps to fix are simple and involve deleting a few files and keychain entries. Describes an issue where Lync (Skype for Business) or Outlook crash. Provides a resolution. This site uses cookies for analytics, personalized content and ads. Lync, Skype for Business, or Outlook 2016 or 2013 Crash. Skype for Business 2016 Skype for Business Skype for Business 2015 Microsoft Lync 2013 Outlook 2016 Outlook 2013 More. On October 27, 2016, Microsoft made the all new Skype for Business on Mac client generally available for download. With this client now available, The Skype team has provided modern clients on all the most popular platforms natively or supported via VDI. Support for the latest codecs such as H.264 for video and Silk for Audio have completely modernized the client. This article was created to help troubleshoot hanging crashing and not responding issues while using Excel. There are several methods to try to stop the application from crashing. How to troubleshoot crashing and not responding issues with Excel - Office Microsoft Docs. Dec 16: Skype for Business down Skype keeps crashing, app not opening on Windows 10 and Mac Himanshu Arora. December 16, 2019. Bugs and Issues. For it’s part, team Skype or Microsoft hasn’t said anything about this sudden glitch. But we’re keeping a close eye. Will update this story with more relevant information in real time.
Problem
After you successfully sign in to Skype for Business Online (formerly Lync Online) by using Lync 2010 or Lync 2013, you may experience the following issues:
You receive a message in Lync that says it cannot connect to Exchange.
You're repeatedly prompted to provide a user name and a password to connect to Exchange.
You may also receive the following message: Credentials are required
Note
The message that you receive may vary, depending on which service Lync is trying to connect to. You may be prompted for credentials when Lync tries to connect to any of the following services:
- Calendar and Free/Busy information from Outlook
- Exchange Web Services (EWS)
- Response Group Service
- Address Book Service
Solution
This issue occurs for multiple reasons, and in certain scenarios, it is the expected behavior. Lync generally prompts you for credentials only after you're signed in and when it must connect to an external service such as the Microsoft Exchange Free/Busy service or the Exchange Calendar service. If Lync continues to prompt you for credentials after it has done this several times, there's probably an issue with Outlook or with the Exchange services.
Fast Tracking
Solutions for Lync users
If a firewall or a proxy is blocking Lync from connecting to EWS, you may experience symptoms such as repeated credential requests, stale Address Book Service (ABS), and intermittent Free/Busy presence issues. To resolve this problem, verify that the user has the correct proxy configured in Internet Explorer. To do this, follow these steps:
- Start Internet Explorer.
- On the Tools menu, click Internet Options, click Connections, and then click LAN Settings.
- Make sure that the Automatically detect settings option is selected. If your organization requires you to enter specific information for the proxy server or an automatic configuration script, contact your network administrator.
- Restart both Internet Explorer and Lync to check whether the problem is resolved. If the problem persists, go on to the next section.
Lync can't connect to Outlook or EWS
If Lync doesn't integrate automatically with Outlook, Lync prompts you for credentials before it lets you connect to Outlook to retrieve Calendar and Free/Busy information. If you are prompted repeatedly after you enter your credentials, see the following Microsoft Knowledge Base article:
2436962 'There was a problem connecting to Microsoft Office Outlook' error when you sign in to Skype for Business Online
If Lync doesn't automatically connect to EWS, Lync prompts you for credentials before it lets you access the EWS URLs. If you are still prompted after you enter your credentials, see the following Microsoft Knowledge Base article:
2787614 Conversation history, contact cards, Free/Busy, and Out of Office information are unavailable when Lync fails to connect to Exchange
If you're repeatedly prompted to enter your credentials or receive the 'Access Denied' error message, see the following Microsoft Knowledge Base article:
2630976 'Access Denied' error, or user is repeatedly prompted for credentials when trying to connect to Office 365 by using a rich client application
Solutions for Lync administrators
Lync can’t connect to Outlook or EWS
If the Exchange server or EWS is unavailable, this causes Lync to continuously prompt for credentials because it can't contact Exchange for authentication. To resolve this issue, verify that Outlook has connectivity to the mailbox. If Outlook can't connect to Exchange, troubleshoot the issue as an Exchange connectivity issue. For more information, see the following Microsoft Knowledge Base article:
2787614 Conversation history, contact cards, Free/Busy, and Out of Office information are unavailable when Lync fails to connect to Exchange
Microsoft Lync For Mac 2015
If a firewall or a proxy is preventing Lync from connecting to EWS, you may experience symptoms such as repeated credential requests, stale ABS, and intermittent Free/Busy presence issues.
Ports 443, 5060, and 5061 must be open on the firewall and on proxy servers to let traffic pass freely. For more information about firewall or proxy issues in an Office 365 environment, see the following Microsoft Knowledge Base article:
2409256 You can't connect to Skype for Business Online, or certain features don't work, because an on-premises firewall blocks the connection
Stone Crushing Machine
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