troubleshooting Question

Office 365; User can not log on; The user-id may be invalid

Avatar of capellen
capellen asked on
ExchangeMicrosoft 365
12 Comments1 Solution674 ViewsLast Modified:
One of our students can not log on to Office 365. The message he receives (see pic) says something like this:

This does not work
The user-id may be invalid

The user has no strange characters in either his sam account name or e-mail.
Other users have no problems so far.
The user had no problems in the past weeks.
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