Nextcloud.com (letsencrypt) certificate invalid on Fortigate Firewall

Hello everybody!
Since 01.10.2021 both my nextcloud server as well as the official nextcloud.com internet page are being blocked by fortigate firewall. The certificate is invalid. I presume this goes for every letsencrypt certificate.
Am I the only one having this issue?
Should I contact Fortigate rather?
Thank you in advance for replies.
Regards

I think you must delete the corresponding certificate. You can for testing only move it away.
Hopefully our Fortigate Firewall downloads the certificate again.

Fortigate Firewall:
Fortinet and Expiring Let’s Encrypt Certificates

Nextcloud (example Client):
ISRG Root X1 Certificate not trusted · Issue #3858 · nextcloud/desktop · GitHub

Lets Encrypt:
https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/

1 Like

Thank you. This time good to hear I am not the only one :slight_smile: