User getting error while login to OWA

Question

Few of our users are facing below error while login to webmail

• X-Auth-Error OpenIdConnect Microsoft.Exchange.Clients.Security.AccountTerminationException

this gets fixed automatically after few hours but we are getting increasing reports for ![](https://learn-attachment.microsoft.com/api/attachments/f4f86a09-4cfb-4b98-82ad-3e48aa834d73?platform=QnA

Answer 1

Hello Sweta,

If there is any update, please share at your convenience.

Regards,

Carlos

Answer 2

Hello Sweta

I recommend starting the Troubleshooting by:

1-

Are the users attempting to login from PC/Mobile Device?

Try to clear the cache and browsing history of the browser you're currently using. You can also try to use a different browser when accessing your account also different Networks.

2-Then you need to check the Exchange Online Settings for the affected user.

2.1-Exchange Online License properly assigned in Office 3635 admin Center.

2.2- Connected to Exo Powershell:

https://docs.microsoft.com/en-us/office365/ente...

We need to check if the user has any blocking access from CAS.

Get-CASmailbox identity "user" | fl *owa*

3- Is there any firewall/proxy

When the issue happen then we need a network trace for deeply analysis.

Fiddler tool is very helpful.

https://www.telerik.com/fiddler

I you are not familiar with the tool I Recommend you contact support for assistance.

Just let me know if any doubt,

Regards,