WP fail2ban blocking Cloudflare, how to fix problem?

  • I recently set up Cloudflare on a website, and a day after suddenly started the 521 error. Up on research, it appears that the server firewall started blocking the CF IPs. So I know I have to whitelist the CF address in the firewall. However, I have also checked the fail2ban logs, and I found these entries (just showing a few entries as example):

    2022-10-10 09:00:36,485 fail2ban.filter [804]: INFO [wordpress-hard] Found 162.158.62.98 - 2022-10-10 09:00:36
2022-10-10 09:01:37,795 fail2ban.filter [804]: INFO [wordpress-hard] Found 162.158.62.6 - 2022-10-10 09:01:37

    Does this mean that fail2ban is also blocking Cloudfare? If so, how do I whitelist the CF IPs with the free version of fail2ban? Or what is it that I need to do?
    Thanks,

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