We help IT Professionals succeed at work.
Get Started

One user can't connect to Exchange via Outlook.

James asked
Last Modified: 2020-02-02
One user can't connect to Exchange via Outlook.
Outlook 2016/2019 & Exchange 2016

Few days ago the client was unable to setup an iphone for the user/mailbox.
Exchange Event 1053 Exchange ActiveSync doesn't have sufficient permissions to create the ...
Followed:  KB https://support.microsoft.com/en-us/help/2579075/activesync-users-cannot-synchronize-an-eas-device-for-the-first-time-i
Resolved the issue with the iphone setup, but next day Outlook started to prompt for credentials.

Repeated efforts to setup the account/re setup have all failed.  Tried different machines and versions of Outlook - no luck
Always repeated password prompts & then fails.   Tried to manually configure.
OWA access works just fine
Same workstation & logged in as the user in questions - Can create an Outlook profile & connect for other users.  
Went into AD, user, advance security & reset to defaults.   Made no differences.
Exchange mailbox hasn't changed.  Active sync/OWA enabled.

Sort of stumped short of the nuclear option...  any ideas?
Watch Question
This problem has been solved!
Unlock 1 Answer and 2 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant

An Experts Exchange subscription includes unlimited access to online courses.

Get Started
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE