My website is hosted at digitalocean droplet. I use ssh to access the VM. Website uses Cloudflare for CDN. I notice the website is inaccessible via web browser (522 error) and denied new ssh sessions few days ago. I have another PC with an existing ssh session to the droplet. (The PC never shutdown for troubleshooting purposes) I had to stop the firewall (# systemctl stop firewalld) then the website is up and running, and able to access ssh from new session.
After web and ssh is up, I turn on the firewall (# systemctl start firewalld) but the disconnection happenes again after few hours, I had to disable the firewall and it will work again. This just started one month ago. Please help on this.
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