LetsEncrypt The SSL certificate could not be generated!

Hi,
I am hitting error in “The SSL certificate could not be generated!” While generating LesEncrypt cert from Axigen Webadmin-Security & Filtering- SSL Certificate. port 443 has been opened from firewall NAT router. I am access Webadmin from WAN. Any Guru here can help, thanks !

Is your port 80 also open? Let’s Encrypt requires that to confirm you own the domain.

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You need to open port 80 from your firewall AND you need to enable port 80 at the Axigen admin interface. Remember to keep those ports open/enabled, or Axigen cannot refresh that certificate!

Thanks Guy, issue resolve by changing Webmail port to 8080 instead of port 80… This is very strange, i have confirm firewall/NAT port 80 to Axigen server port 80 and it STILL fail… After changing Wemail port to port 8080. It works ! Firewall DNAT PAT port 80 to port 8080…

I did the same thing since I found that my server’s Port 80 was being used by something else, so I changed Axigen to use 8080 and then did a port forward from 80 to 8080.