Open TCP ports 80, 443 and 843 for all the above addresses.
Sokikom Multiplayer requires this IP allowed on these Ports.
Puffin Academy will use these IP ranges (CIDR):
Puffin Academy needs TCP ports opened for HTTP(80), HTTPS(443), and UDP port for DNS(53)
If you have other restrictions before the whitelist rules, Sokikom can still get blocked even after it has been whitelisted.
If you use firewall rules to control traffic, always make sure the whitelist rules for Sokikom are executed before any blacklist-like rules.
Since firewall configurations are vendor/hardware/firmware specific, remember to consult firewall providers if you don't know how to do that.