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ahmad-hassan83 avatar image
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ahmad-hassan83 asked KyleXu-MSFT commented

OWA webmail not redirect

Hello all,

Today the electricity in the company has been broken, and when electricity it returns again, I can login to ECP and create, remove, edit, etc... . But can't login to owa after put credential "user\pass" redirect to:

82863-image.png

Also I check all services is running and IIS running, and make

01- IISReset
02- Restart-WebAppPool MSExchangeOWAAppPool
03- Restart-WebAppPool MSExchangeECPAppPool

But nothing :(

82871-image.png


In the end, I tried install CU 19 again but the next button not active

82837-image.png

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NB: Exchange server 2016 CU 19, On-prem






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ahmad-hassan83 avatar image
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ahmad-hassan83 answered KyleXu-MSFT commented

@KyleXu-MSFT

I found VM 2FA in my environment shutdown, only roles ADFS and IIS is installed but not configure, after power on OWA is working find. Also I try power off 2FA again the OWA return not working.

I do not know the reason for this?

If there is a reason for this to happen, please explain it and how to avoid it if shutdown 2FA again.

Thanks for your support and I am a waiting your reply :)

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Glad to see this issue is solved.
How do you enable 2FA in your organization.
If you force enable 2FA on mailbox, it is a normal phenomenon, if 2FA cannot be used, because a verification step is missing.

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@KyleXu-MSFT

This server was created to enable 2FA and only installed roles ADFS and IIS but not configure, and we not used 2FA still now.
But how can shutdown this 2FA VM and not affect to EXCH OWA.
Is there a specific service or something similar?

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Try to check the DNS record and connection stops for OWA, whether isn't point to ADFS. I think you may configure it when you install ADFS.

For more detailed information about remove/disable ADSF from your organization, I would suggest you confirm with the ADFS forum, they may could provide you a more detailed tutorials.

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Any update about this thread now?

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KyleXu-MSFT avatar image
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KyleXu-MSFT answered ahmad-hassan83 commented

@ahmad-hassan83

First, it is an expected behavior that you cannot click the "Next"(Because you have installed all server roles, there doesn't exist other server role to be installed):
82946-qa-kyle-09-59-32.png

After installing security update for Exchange 2016 CU 19, some user may get ECP/OWA 500 error. (The detailed error message is different from yours). You can try to reinstall this security update with administrator permission.

If this issue still exist, you can try to install Exchange 2016 CU 20 directly: Cumulative Update 20 for Exchange Server 2016 (KB4602569)

After that, it this issue doesn't gone, I would suggest you try to recreate OWA virtual directory.


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@KyleXu-MSFT

Thanks for your reply.

01- I try now download latest CU 20 and try install.

02- I installing security update in the first of March and work fine until yesterday, at 12 PM received call from employee can't login to OWA only email work on outlook client on laptop and mobile.

03- I try yesterday recreate OWA virtual directory but nothing.

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