This is a follow up of this other problem Let's Encrypt suddenly unable to renew certificates where I tried to renew an expiring certificate of the domain name and the subdomain that I used for logging to virtualmin/webmin.
The SSL expired just now and I can’t seem to do anything on the dashboard anymore. If I try to open anything or say, change the virtual server in the dropdown, I jsut get the following error:
Connection Lost
"Can’t establish a connection to the server at **[abc.example.com:10000](http://abc.example.com:10000/)**
Yes, this issue can be annoying. It’s simple to fix it though.
At first, try connecting to your server as https://1.2.3.4:10000 to see if it works without an error above, and if it does, then re-request certificate for troubled domains.
If you still experience an issue after all, try the following easy to follow steps:
Open for edit /etc/webmin/miniserv.conf
Remove all lines with entries starting with ipkey and ipcert matching domain you’re having an issue with
Remove all certfile and extracas lines
Find keyfile= and set it to /etc/webmin/miniserv.pem
@Ilia Thank you so much for the reply. However, @calport helped me fixed it and found out that the reason for this issue was because I added ipv6 address to the DNS a few months back and he just needed to set up the server to use ipv6.