Can't sign in on mobile clients

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29379434 asked Feb 21, '22 JimmyYang-MSFT edited Feb 28, '22

Can't sign in on mobile clients

Hi!

I have SFB 2019 server with Edge role and reverse proxy. On Windows PC from external network SFB client run successfully. Resources that i published on a reverse proxy is accessible outside of my network. HTTPS cetrificates is trusted.

Checks on site https://testconnectivity.microsoft.com shows no errors except "Additional Details. The Microsoft Connectivity Analyzer can only validate the certificate chain using the Root Certificate Update functionality from Windows Update. Your certificate may not be trusted on Windows if the "Update Root Certificates" feature isn't enabled."
But on mobile devices (both iOS and Android) i get error when try to sign in. Something like this: "You have signed out from system. Enter your credentials to sign in again."

Please help me to solve this problem.

Thanks!

office-skype-business-server-sign-in

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Answer 1 · 2022-02-22T10:08:16.027Z

JimmyYang-MSFT answered Feb 22, '22 JimmyYang-MSFT commented Feb 23, '22

Hi @29379434

Does this issue only occurred in Skype for Business from external?

If so, you could try to run the following command to ensure your authentication config:

In addition, please check if there is any error messages from the event viewer on edge server.

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29379434 · Feb 22 at 10:48 AM

Thanks for your answer!
No, it occurs even in local network.
I have "Custom" Scenario. Where can i find information about my custom scenario? In web-client admin panel on the security tab all authentication methods are enabled - for registrar and web service.
Or I can without any worries switch the scenario to "AllowAllExternallyAndInternally"?

Thank you!

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29379434 · Feb 22 at 11:29 AM

I have changed scenario to "AllowAllExternallyAndInternally" and it works for me! I have succesfully signed in, thanks a lot!
In mobile app i can't see history of conversations and calls from PC, but it's not so important is this second, the main problem is solved.

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JimmyYang-MSFT 29379434 · Feb 23 at 01:43 AM

@29379434

Glad to see the above information is helpful to you.

Meanwhile, if the reply is helpful to you, please try to mark it as an answer to close the thread, it will help others who encounter the same issue and read this thread.

Thank you for your understanding and patience!

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Answer 2 · 2022-02-22T13:12:32.117Z

29379434 answered Feb 22, '22

Solved by changing scenario to "AllowAllExternallyAndInternally".

Set-CsAuthConfig -Scenario AllowAllExternallyAndInternally

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Answer 3 · 2022-02-28T08:42:03.43Z

JimmyYang-MSFT answered Feb 28, '22 JimmyYang-MSFT edited Feb 28, '22

Hi @29379434

Thanks for your feedback above which shared more information and glad to know that your issue is resolved now! Since our forum has the policy that The question author cannot accept their own answer. They can only accept answers by others, and according to the scenario introduced here: Answering your own questions on Microsoft Q&A

I would make a brief summary of this post so that other forum members could easily find useful information here:

[Can't sign in on mobile clients - Summary]

Issue Symptom:
On mobile devices (both iOS and Android) i get error when try to sign in. Something like this: "You have signed out from system. Enter your credentials to sign in again.

Solution:
Changing scenario to "AllowAllExternallyAndInternally".

 Set-CsAuthConfig -Scenario AllowAllExternallyAndInternally

You could "Accept Answer" for this summary to close this thread, and your action would be helpful to other users who encounter the same issue and read this thread. Thanks for your understanding!

If an Answer is helpful, please click "Accept Answer" and upvote it.

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