Organizations restricting GitHub access may be affected. Connection IP changes could lead to Claude Code failures.
Connection Issues for Organizations Restricting GitHub Access
Original: Connection failures for organizations restricting GitHub access by IP address
Importance: GitHubアクセスに関する重大な障害で、影響が大きい。
Summary
On May 6, 2026, Anthropic identified an issue affecting organizations that restrict GitHub access by IP address. A recent infrastructure change altered the IP addresses used for outbound connections to GitHub, potentially causing failures in Claude Code remote sessions, GitHub Enterprise plugin syncing, and Claude Security. They plan to revert the change to restore the previous IP ranges, with no allowlist changes needed on the user side. An update will be posted once the fix is deployed.
Key Points
- Affects organizations restricting GitHub access
- Connection IP changed due to infrastructure changes
- Potential failures in Claude Code
- Plans to revert the changes
- No user-side configuration changes needed
View developer notes (APIs, breaking changes, migration)
On May 6, 2026, Anthropic identified connection issues for organizations restricting GitHub access by IP address due to a recent infrastructure change that altered the outbound IP addresses. This may cause failures in Claude Code remote sessions and GitHub Enterprise plugin syncing. They are reverting the changes to restore the previous IP ranges, requiring no action from users.
Source: https://status.claude.com/incidents/snxm62gpxfc9
Outlet: Anthropic Status
This article is an AI-generated summary (OpenAI GPT-4o-mini) of publicly available information from Anthropic, OpenAI, Google, Meta, Mistral, DeepSeek, Sakana, and other vendors. The original source URL is always provided in accordance with fair-use citation requirements. Summaries are AI-generated and may contain mistranslations or misinterpretations. Always verify details with the original source.