A migration can change inbound or outbound addresses and unintentionally block users, partners, or dependent services.
Inventory access rules on both sides, map source and destination addresses, and confirm whether stable ingress or egress is required. Test from representative clients and integrations before cutover, then remove temporary rules after validation.
Cloud architecture planning can map network controls and migration dependencies. Informatix Systems can assess the symptoms, evidence, and next steps. Contact Informatix Systems to discuss this issue.