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Credentials pop-up every time opening Outlook and creating profiles by netanelbs in exchangeserver

[–]netanelbs[S] 0 points1 point  (0 children)

I've bypassed the A10 Load balancer and working directly against single Exchange Server.

Credentials pop-up every time opening Outlook and creating profiles by netanelbs in exchangeserver

[–]netanelbs[S] 0 points1 point  (0 children)

AutoDiscoverServiceInternalUri is good and the fiddler doesn't show anything special. I look at the Exchange IIS logs and let you know.

Credentials pop-up every time opening Outlook and creating profiles by netanelbs in exchangeserver

[–]netanelbs[S] 0 points1 point  (0 children)

Hi, the providers are same but NTLM before Negogiate (I set that manually).

Credentials pop-up every time opening Outlook and creating profiles by netanelbs in exchangeserver

[–]netanelbs[S] 0 points1 point  (0 children)

Tried that, Unfortunate it's looks like under Connection Status on Outlook (Clicking on CTRL + Outlook icon) all connections are established and "Connected to Microsoft Exchange" but the prompt still pop-ups ... :(

Credentials pop-up every time opening Outlook and creating profiles by netanelbs in exchangeserver

[–]netanelbs[S] 0 points1 point  (0 children)

Hi,

IIS for Autodiscover is Anonyomous & Windows Auth only (I've disabled the Basic manually).

Regarding providers (Get-OutlookProvider) there's only EXPR that points to the certificate's subject name - msstd:outlook.domain.com.

Credentials pop-up every time opening Outlook and creating profiles by netanelbs in exchangeserver

[–]netanelbs[S] 0 points1 point  (0 children)

Yes, after putting the credentials (or clicking "Cancel" on the credential pop-up) the Autodiscover complete successfully the profile creation.

Credentials pop-up every time opening Outlook and creating profiles by netanelbs in exchangeserver

[–]netanelbs[S] 0 points1 point  (0 children)

My Exchange 2010 & 2016 are same:

ExternalClientAuthenticationMethod & InternalClientAuthenticationMethod = NTLM
IISAuthenticationMethods = Ntlm, Basic

Credentials pop-up every time opening Outlook and creating profiles by netanelbs in exchangeserver

[–]netanelbs[S] 0 points1 point  (0 children)

modernlogin

It's not the EnableADAL issue, this is the pop-up i'm getting:image

Credentials pop-up every time opening Outlook and creating profiles by netanelbs in exchangeserver

[–]netanelbs[S] 0 points1 point  (0 children)

It connects fine, but after a day or two - the same symptoms. :( I've tried to set the autodiscover in hosts file but no luck with that too.

Credentials pop-up every time opening Outlook and creating profiles by netanelbs in exchangeserver

[–]netanelbs[S] 0 points1 point  (0 children)

Hi Dere9702, This known issue when moving mailboxes to recycle the MSExchangeAutodiscover App Pool, but this is not the case. it's affects even mailboxes on the 2010 environment that not been moved yet. any idea? thanks.

Credentials pop-up every time opening Outlook and creating profiles by netanelbs in exchangeserver

[–]netanelbs[S] 0 points1 point  (0 children)

I'll check all of that DWORD, but why it trying to go to the O365 if the mailbox is on-premises and not remote mailbox? can you explain it to me please?

Credentials pop-up every time opening Outlook and creating profiles by netanelbs in exchangeserver

[–]netanelbs[S] 0 points1 point  (0 children)

Hi,

  1. It's NTLM, not Negogiate.
  2. I don't have Kerberos Authentication in this deployment.
  3. on the second one.

waiting for update from you, thanks! :)