Instagram enforces strict rules to maintain the integrity and security of its platform. When an IP address is flagged as an open proxy, it means that Instagram has identified it as a potential risk.

Instagram enforces strict rules regarding the use of proxies. Encountering an "open proxy" error means you won't be able to access the app or Instagram website from the device using the flagged IP address. When Instagram bans your IP, it rejects all data requests sent from that IP address.