I have two servers. One is running Linux and is serving the main www pages. The second server is serving the subdomains for that same domain, running Windows Server 2012.
Three months ago I created certificates with certbot including all domains and subdomains in linux terminal command. I then copied the 4 .pem files to the desktop of the Windows server and the admins did whatever is needed to make the certificates active for Apache24 on the Windows machine.
Now I renewed the certs with the same command. Certs are fine and up-to-date on the Linux machine. I again copied the 4 pem files to the Windows machine and found the 4 old pem files in c:/Apache24/conf/ssl/ and replaced them with the new ones, restarting Apache.
Visiting the Windows server subdomains, I get an out-of date certificate error in the browser.
Is there something else that needs to be done on the Windows machine to update the certificates? The admins are unavailable and I’m only familiar with Linux, so this is beyond my experience with servers. I read something about CA bundles, but I have no idea how to continue.