Renew OpneVPN Server Cert

[thoenny]

Hello,

I had some trouble with an expired OpnenVPN Server certificate. Maybe my experiences can help others and someone can give me some Advice how to do better next time.
I created a new Servercertificate and set it in the OpenVPN Server (The CA is still valid). But I was'nt able to connect. I think my mistake was a different CN in the new Certificate, because the CN is compared in the default settings. But I also noticed that the Common Static Key in the Server changed too. Is this a normal behaviour?
After setting the old key again, all clients were able to connect properly.

Regards
thoenny