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Skype For Business won't accept valid credentials when connecting to corporate address book RRS feed

  • Question

  • My organization is in the process of migrating from Lync 2013 to Skype For Business 2015. 

    The outlook client is a mix of Outlook 2013 and Outlook 2016. 

    Exchange is 2016. 

    We have found that intermittently, users will get prompted for credentials to connect to the corporate address book. 

    However it does not accept valid credentials. 

    If you cancel out of the authentication prompt, skype for business continues to work fine, you can search the address book, etc. 

    We have tried:

    1. Clearing out all saved credentials

    2. Creating a new Skype/Lync profile

    3. Creating a new Outlook profile

    4. Applying a client policy so that AddressBookAvailability is WebSearchOnly  (previously it was configured to WebSearchAndFileDownload)

    Autodiscover records are all configured properly in DNS, there are no issues with autodiscover for Outlook. 

    Any ideas on what may be happening?  I have been researching this for a while and it seemed to be a known bug at one point that Microsoft was supposedly going to fix with a future update but i haven't seen anything on if the update was ever released. 

    Thanks.



    • Edited by MikeN401 Wednesday, February 1, 2017 3:37 PM
    Wednesday, February 1, 2017 3:30 PM

All replies

  • Hello Mike,

    Can you tell us the CU installed in your Skype environment.

    Please share the Skype4Business Server version


    Whenever you see a helpful reply, click on Vote As Helpful & click on Mark As Answer if a post answers your question.

    Wednesday, February 1, 2017 5:33 PM
  • Hi,

    The version is 6.0.9319.272

    Thanks,

    Mike

    Wednesday, February 1, 2017 5:56 PM
  • Do you have the sip and email address to be the same ? can you also try with the latest version of SFB client and see the issue is happening. 


    Linus || Please mark posts as answers/helpful if it answers your question.

    Thursday, February 2, 2017 7:01 AM
  • Yes, the SIP address does match the email address.

    We have volume licensed office professional plus, the Skype For Business client is a part of office.

    Office is fully patched,  but the clients are a mix of Office 2013 and Office 2016.

    The issue happens randomly in both versions.

    Thursday, February 2, 2017 1:58 PM
  • Here we have different email address and SIP address which will also the reason for causing the promt related . 

    Have you also tried the registry key 

    Locate and then right-click the following registry subkey: 

    HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Communicator Point to New, and then click DWORD Value. Type DisableEmailComparisonCheck as the name of new registry entry, and then press ENTER. Double-click DisableEmailComparisonCheck, type 1 in the Value data box, and then click OK. 

    For details, please refer to

    https://lyncdude.com/2014/05/27/complete-guide-for-troubleshooting-lync-outlook-clients-integration/


    Linus || Please mark posts as answers/helpful if it answers your question.

    • Proposed as answer by jim-xu Monday, February 13, 2017 9:43 AM
    Friday, February 3, 2017 11:53 AM
  • Hi Mike,

    Did this issue occur on specific client or all clients?

    In addition to above suggestions, please go into the credential manager in Control Panel and finding the generic credentials with "office15" in them and deleting them, then check if the persist.


    Best Regards,
    Jim Xu
    TechNet Community Support


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    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    • Proposed as answer by jim-xu Monday, February 13, 2017 9:43 AM
    Thursday, February 9, 2017 7:38 AM
  • Hi,

    it is happening on all clients.

    User's SIP addresses match their e-mail addresses.

    We have tried clearing saved credentials which doesn't help.

    In particular, this happens whenever you do a search, you get a pop up asking for credentials to connect to the corporate address book.

    It doesn't take valid credentials, but if you cancel out of the authentication prompt then you do see your search results fine and the client continues to function normally aside from the authentication prompt which is an annoyance for end users.

    Thank You.

    Monday, February 13, 2017 2:06 PM
  • Hi Mike,

    To this issue, we suggest you right click “Skype for business icon” in task manager and choose “Configuration Information”, then check the status for “MAPI Information” and “EWS Information” if it is ok.


    Best Regards,
    Jim Xu
    TechNet Community Support


    Please remember to mark the replies as answers if they helped.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Wednesday, February 22, 2017 2:17 AM
  • I checked this when encountering the issue,  MAPI was ok, the EWS URLs were empty and EWS had not fully initialized.

    I closed the client, deleted the file

    %localappdata%\Microsoft\Office\16.0\Lync\sip_<SIP address>\EwsFolder<SIP address>.cache

    After restarting Skype for business, EWS was initialized and the URLs were present in the configuration information.

    This is consistent with what we have seen so far.  If you delete the Lync\sip_sipAddress folder then it works for a while then it eventually breaks again on the client side.

    Wednesday, February 22, 2017 12:52 PM
  • Hi Mike,

    Did this issue also occur in SFB client?

    For Lync 2013 client, please refer to the following link:
    https://support.microsoft.com/en-us/help/2833618/lync-cannot-verify-that-the-server-is-trusted-for-your-sign-in-address-message-during-client-sign-in


    Best Regards,
    Jim Xu
    TechNet Community Support


    Please remember to mark the replies as answers if they helped.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Tuesday, February 28, 2017 7:06 AM