Worked on the felleslosninger/docs repository to address a critical connectivity issue affecting Altinn onboarding workflows. Focused on updating the eFormidling documentation by adding missing IPv4 firewall entries, which enabled DPO and DPV onboarding across multiple environments, including platform.tt02.altinn.no and test.svarut.ks.no. The solution involved precise network configuration and thorough documentation using Markdown, ensuring that firewall guidance was complete and aligned with actual infrastructure. By linking changes to specific commits and pull requests, the work improved traceability and deployment reproducibility. This targeted bug fix enhanced onboarding reliability and provided clear, maintainable documentation for future network configuration scenarios.