Microsoft is providing a new online troubleshooting tool for Office 365 services. This one has to be used for Lync Online sign-in issues.

This online troubleshooting tool is based on experience learned by Office 365 support team over the last 9 months.

The first step is to go to and follow the troubleshooting wizard


Select who is having sign-in issues – user specific, group or everyone within your organisation


Depending of your selection, next actions/options vary

  • for a user specific issue, you will be asked if this user is able to logon to Office 365 portal


    • Depending of your answer, the issue may be related to license assignment or Office 365 authentication issue


If actions/options proposed don’t help, additional steps will then be proposed (such as try to logon from another device, run WindowsUpdate or check system time configuration…)

  • for a group of user, you will be asked if you are using custom domain (aka associated Internet domain)
  • for everyone in your organisation, this may be because you don’t correctly defined DNS entries or issue with the sign-in service on Office 365


Enjoy with this new troubleshooting tool which may help to quickly understand what is happening and so restoring the service to your users Smile

Source –!

Category: How to do; Servers
Published: 11/18/2013 18:56