# javax.net.ssl.SSLException

**URL:** <https://forum.keycloak.org/t/javax-net-ssl-sslexception/7604>\
**Category:** Configuring the server\
**Created:** [February 24, 2021, 8:36pm UTC](https://forum.keycloak.org/t/javax-net-ssl-sslexception/7604 "2021-02-24T20:36:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![R4nmaru](https://avatars.discourse-cdn.com/v4/letter/r/a4c791/32.png) [@R4nmaru](https://forum.keycloak.org/u/R4nmaru)\
**Post date:** [February 24, 2021, 8:36pm UTC](https://forum.keycloak.org/t/javax-net-ssl-sslexception/7604/1 "2021-02-24T20:36:57Z")

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After upgrading to keycloak 12.0.3 i get javax.net.ssl.SSLException: Certificate for doesn’t match any of the subject alternative names: .

Why my ssl certificate is not accepted anymore. The SAN name is definetly correct