Hi all, After upgrading to 13.11, Publisher no longer accepts cert of subscriber. Certs have been issued by internal CA. Subscriber: ,DEBUG,00000,"starting logical replication worker for subscription ""meteo""",,,,,,,,,"","logical replication launcher" EBUG,00000,"registering background worker ""logical replication worker for subscription 16486""",,,,,,,,,"","postmaster" EBUG,00000,"starting background worker process ""logical replication worker for subscription 16486""",,,,,,,,,"","postmaster" 0,LOG,00000,"logical replication apply worker for subscription ""meteo"" has started",,,,,,,,,"","logical replication worker" EBUG,00000,"connecting to publisher using connection string ""host=<some FQDN> port=5432 user=replicator dbname=operations""",,,,,,,,,"","logical replication worker" RROR,XX000,"could not connect to the publisher: SSL error: sslv3 alert certificate expired",,,,,,,,,"","logical replication worker" EBUG,00000,"unregistering background worker ""logical replication worker for subscription 16486""",,,,,,,,,"","postmaster" OG,00000,"background worker ""logical replication worker"" (PID 92845) exited with exit code 1",,,,,,,,,"","postmaster" Servercert: Not Before: Aug 18 09:12:35 2022 GMT Not After : Aug 29 09:12:35 2023 GMT Publisher: "connection received: host=<some IP6> port=32501",,,,,,,,,"","not initialized" "could not accept SSL connection: certificate verify failed",,,,,,,,,"","not initialized" Servercert: Version: 3 (0x2) Serial Number: 37:19:dc:15:5c:e7:4e:b8:46:b0:a7:49:73:6a:9b:fa:c3:27:a0:6b Signature Algorithm: sha384WithRSAEncryption Issuer: <…> internal CA Validity Not Before: Aug 18 09:12:35 2022 GMT Not After : Aug 29 09:12:35 2023 GMT Subject: CN = <some FQDN> Subject Public Key Info: Public Key Algorithm: rsaEncryption RSA Public-Key: (2048 bit) What has changed with SSL in 13.11 ? How can I find out what really goes wrong here ? How to fix it. Any help appreciated, Axel --- PGP-Key: CDE74120 ☀ mobile: +49 160 7568212 computing @ chaos claudius