Hello, yes, the remark in the documentation is about configuration change. Certificate reload should be fine with the “reload” cmd. You need to trigger it, its not done automatically. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com<https://gilawa.com/> From: sr-users &lt;sr-users-bounces(a)lists.kamailio.org&gt; On Behalf Of Aymeric Moizard Sent: Friday, February 25, 2022 11:28 AM To: Kamailio (SER) - Users Mailing List &lt;sr-users(a)lists.kamailio.org&gt; Subject: [SR-Users] kamailio and certificate renewal Hi all, I'm switching my kamailio to use Let's Encrypt certificates. Do I need to force a restart of kamailio when the certificate is renewed or will this be automatic? The doc indicates that reload is possible (but not advised) but it looks to be for a "configuration change" (tls.cfg file change) and not for certificate change. Maybe certificates are automatically reloaded? Regards Aymeric -- [http://sip.antisip.com/am48.png]Antisip - http://www.antisip.com