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Can't sign in to skype for business there was a problem verifying the certificate from the server. RRS feed

  • Question

  • How to troubleshoot and resolve below issue:

    Can't sign in to Skype for business there was a problem verifying the certificate from the server.

    1. Ran Office repair restarted Windows.
    2. flushed dns
    3. certutil -urlcache * delete
    4. PC is connected to corporate domain.
    5. Issue started after corporate network went down and then came up again.
    6. Installed certificate provided by corporate no good.

    Above steps did not resolve the issue.

    Saturday, November 9, 2019 2:21 AM

All replies

  • Hi Jackin,

    What is your environment, on-premise or online?

    Does this issue persist all the time after corporate network went down?

    Does anyone else have the same issue?

    In my research, you can try to solve the issue in these ways:

    1. Please try deleting my sign-in info and cleaning your credential on PC (Control Panel>User Account>Credential Manager)
    2. Changing to another network environment or disabling the antivirus software to see if this issue can be improved.
    3. Ensure you have installed the required root certificate.

    If your environment is online, you can refer to this article:

    https://docs.microsoft.com/en-us/skypeforbusiness/troubleshoot/online-sign-in/cant-sign-into-sfb-online

    Best Regards,
    Jimmy Yang

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.
    Monday, November 11, 2019 6:24 AM
  • Hi Jackin,
    Is there any update on this case?
    Please feel free to drop us a note if there is any update.
    Have a nice day!

    Best Regards,
    Jimmy Yang

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.
    1 hour 41 minutes ago