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Error: 'Cannot login to Mosaic unable to find valid certification path to requested target'

In this article, we explain why Mosaic login fails with an SSL handshake exception and certificate path error.

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Written by Yusef Abulaynain
Updated over 5 months ago

Error:
​'Root exception is javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
simple bind failed: oak.eastlothian.gov.uk:636
simple bind failed: ash.eastlothian.gov.uk:636'

This error occurs when the certificate(s) on the Active Directory (AD) or LDAP server do not match the certificates installed on the Mosaic app server.

For hosted customers please raise a new case online and reference the title of this article. Please provide the name or URL of the Mosaic instances this relates to.
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