# PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target checking remote for update

**URL:** <https://community.sonatype.com/t/pkix-path-building-failed-sun-security-provider-certpath-suncertpathbuilderexception-unable-to-find-valid-certification-path-to-requested-target-checking-remote-for-update/8478>\
**Category:** Sonatype Nexus Repository\
**Created:** [April 6, 2022, 1:20pm UTC](https://community.sonatype.com/t/pkix-path-building-failed-sun-security-provider-certpath-suncertpathbuilderexception-unable-to-find-valid-certification-path-to-requested-target-checking-remote-for-update/8478 "2022-04-06T13:20:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gary.herber](https://avatars.discourse-cdn.com/v4/letter/g/ccd318/32.png) [@gary.herber](https://community.sonatype.com/u/gary.herber)\
**Post date:** [April 6, 2022, 1:20pm UTC](https://community.sonatype.com/t/pkix-path-building-failed-sun-security-provider-certpath-suncertpathbuilderexception-unable-to-find-valid-certification-path-to-requested-target-checking-remote-for-update/8478/1 "2022-04-06T13:20:13Z")

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Experiencing PKIX errors connecting to remote repos. All efforts following KB articles are unsuccessful. Can anyone help?

2022-04-05 09:31:48,759-0400 WARN [qtp82741776-9466] XXXXXXXXXXX org.sonatype.nexus.repository.maven.internal.orient.MavenProxyFacet - Exception javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target checking remote for update, proxy repo mule-ee-releases failed to fetch rg/apache/maven/plugins/maven-surefire-plugin/maven-metadata.xml, content not in cache.

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**Author:** ![mpiggott](https://avatars.discourse-cdn.com/v4/letter/m/f0a364/32.png) [@mpiggott](https://community.sonatype.com/u/mpiggott)\
**Post date:** [April 6, 2022, 2:46pm UTC](https://community.sonatype.com/t/pkix-path-building-failed-sun-security-provider-certpath-suncertpathbuilderexception-unable-to-find-valid-certification-path-to-requested-target-checking-remote-for-update/8478/2 "2022-04-06T14:46:43Z")

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Your system doesn’t have the appropriate root certificates, or algorithms to connect to the repository.

You could try - [Configuring SSL](https://help.sonatype.com/repomanager3/nexus-repository-administration/configuring-ssl#ConfiguringSSL-OutboundSSL-TrustingSSLCertificatesofRemoteRepositories)