LetsEncrypt Certificate not trusted by Spohos XG Firewall

I have been banging my head against this today.
I was able to resolve this by uploading the Lets Encrypt CA, and ensuring the Name field for the CA is "Let’s Encrypt R3" (Which I specifically copied from https://letsencrypt.org/certificates/).

I tried removing /re-adding a few times, using PEM and DER, seems to work as long as the name is exact. The default value "R3" does not want to work at all.

Not working on mine either. I have a support case opened

Okay, I finally figured out the workaround by Geoff Anderson.

First: Delete all previously uploaded Let's Encrypt certificates. The problem is related to the certificate name, which doesn't matter as long as you choose a name, you didn't use before. And it's important to upload BOTH certificates, the X1 and the R3 one.

https://letsencrypt.org/certs/isrgrootx1.der
https://letsencrypt.org/certs/lets-encrypt-r3.der

Name them LEX1 and LER3 and you will see, all your certificates will appear as trusted again.

And it also solved the problem for LuCar Toni in post #2, because he also uploaded the certificate using a different name.

Thank you very much. So, basically, I need to use a different name for the certificate every time I upload a new one. I will get back to support with that.

Thank you very much. So, basically, I need to use a different name for the certificate every time I upload a new one. I will get back to support with that.