Network & proxy errors — page 2
Issues 201–400 of the 2,176 matching this topic. The trend chart and topic overview are on page 1.
- [Bug] Intermittent API 500 error with version fetch/network failures and file read errors in Claude Code 2.1.104 on macOS
- [BUG] Claude Code Not responding from last 1 hour
- [BUG] settings.json Proxy Configuration Doesn't Work for Claude (But CLI Does)
- [BUG] Claude Code v2.1.237 does not advertise URL-mode elicitation on MCP 2026-07-28 (InputRequiredResult cannot be fulfilled)
- [BUG] Unable to connect to API (ConnectionRefused) on macOS — persists after full reinstall, safe-mode, and reboot (v2.1.204)
- [FEATURE] Native multi-provider model routing in settings.json (per-subagent / per-model-alias provider selection)
- [BUG] CVP repeatedly declines homelab sysadmins — no path for infrastructure owners managing personal hardware
- [BUG] Claude Code hangs with Unable to connect to API (ECONNRESET) on every prompt — both CLI and in-app, persists across networks and clean reinstall
- [FEATURE] Make OAuth/admin base URL configurable like ANTHROPIC_BASE_URL
- [BUG] Commit signing service outage on Claude Code web makes sessions unusable for git operations
- [BUG] Fast mode forcibly disabled when using ANTHROPIC_BASE_URL (custom API endpoint)
- [CRITICAL] Plugin-MCP Configuration Mismatch Causes Misleading 'Request Timed Out' Errors
- Excessive whitespace in response output on Windows (CMD/PowerShell)
- # CRITICAL BUG REPORT: Anthropic's Systematic Mock Data Generation Bias
- [BUG] /context command does not work through Bedrock.
- [BUG] Transient server errors MUST NOT kill subagents
- [DESIGN] .gitignore should not double as AI access control — introduce clear .claudeignore semantics
- [BUG] VSCode session picker sorts by file mtime, not last in-file activity — bulk mtime restamps scramble order and age labels
- [BUG] Every command retries up to 10 times ("Retrying in Xs · attempt X/10") and never gets a response. Happens on every single input.
- [BUG] MCP OAuth tokens not refreshed for claude.ai proxy connections (mcp-proxy.anthropic.com)
- Sandbox TLS verification fails for gh CLI despite github.com in allowedHosts
- [BUG] VSCode extension doesn't load MCP servers on Windows due to drive letter case mismatch in .claude.json project key lookup
- Agent teams (CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS) ignore modelOverrides when spawning subagents
- [BUG] Cloud scheduled tasks: gRPC/HTTP2 blocked by sandbox TLS proxy to googleapis.com
- Dispatch/Cowork: ECONNRESET when connecting to API
- [FEATURE] PreApiCall / PostApiCall hooks to prevent secret exfiltration to API providers and attackers
- [BUG] Cloud environment allowlist missing cache.ruby-lang.org — rbenv install fails with 403
- Feature request: expose rate limit utilization in statusline JSON
- [BUG] http hooks with json don't work.
- Local MCP servers fail with 'Not ready after 60 seconds' even though the remote connection succeeds (shared-pool readiness bug)
- VS Code webview: 'Unsupported content type: advisor_tool_result' / 'server_tool_use' for block types the CLI renders fine
- CCR routine sessions can't reach GitHub — outbound traffic appears routed through a broken internal proxy
- SSE heartbeat (≤30s) during model reasoning to prevent 'Connection closed mid-response' / stream-watchdog stalls on long (esp. Agent-tool) turns
- Fable 5 safety classifier: frequent false-positive model switches on benign content
- Server withholds stream bytes after accepting request — frequent slow-first-byte and 180s idle-timeout aborts (2.1.157, Opus 4.8)
- [BUG] Postgres network egress blocked even with full network permissions
- claude.ai code-execution sandbox: HTTP 503 'DNS cache overflow' on egress to Vercel-hosted host
- MCP connections return 503 DNS cache overflow from sandbox egress proxy (web/mobile)
- [BUG] Opus 4.7 safety filter produces false-positive refusals on encoded input
- Sustained 502 Bad Gateway from mcp-proxy.anthropic.com (Gmail MCP)
- I'm ready to help generate GitHub issue titles for Claude Code bug reports. Please share the bug report details, and I'll create a concise, technical title following the format specified.
- [Bug] Excessive token consumption on single document read
- [MODEL] Opus 4.6 Thinking : Lying behavior.
- [FEATURE] Expose account usage % to hooks and CLI so automated workflows can yield tokens for manual use
- Remote Control: frequent "unknown network error" and session drops when using iOS app
- [BUG] VS Code extension login prompt not bypassed with claudeCode.disableLoginPrompt: true when using Microsoft Foundry
- Expose rate limit / usage quota info in statusLine JSON input
- [FEATURE] Claude Code on the web: allow non-HTTPS TCP egress (e.g. Postgres 5432) when Network access = Full
- [BUG] Cowork macOS: local sandbox VM starts with NO network route (only loopback) and cloud egress proxy returns 403 for every domain, despite "Allow network egress: All domains" — regression since 2026-09-10 ~23:15 UTC
- [BUG] Desktop sidebar: "Show N more" is one-way — no "Show less" and the reveal count never decreases
- [BUG] Claude-spawned child shells on Windows can't complete new outbound TLS handshakes to non-Anthropic endpoints (breaks Perforce)
- [BUG] ECONNRESET on every API call — macOS 26 Tahoe, Darwin 25.4.0, ARM64
- [Bug] Desktop: text input freezes after long session — ProseMirror placeholder/cursor disappears
- [BUG] Team Premium seat weekly limit stuck at 100% after only 102M tokens — other users on same plan consume 757M+ without issues
- [BUG] Enterprise managed-mcp.json silently blocks all claude.ai cloud MCP connectors
- Feature request: Lazy MCP server initialization (connect on demand)
- Voice mode fails with 'Voice connection failed' — Cloudflare challenge blocks WebSocket to claude.ai
- Expose rate limit data in statusLine JSON
- Bug Report
- Chrome integration: Support remote/SSH usage (Claude Code on VPS, Chrome on local machine)
- OAuth Authentication Broken in WSL2 - Cannot Login or Use API
- [BUG] claude code web sandbox: .NET NuGet Package Restore Fails Due to Proxy Authentication
- Clarification needed on Statsig dependency following OpenAI acquisition
- [BUG] CLOUD_ML_REGION env variable is ignored for the Claude 3.5 Haiku POST when using LiteLLM+GoogleVertexAI
- [BUG] After a network change, the next request hangs 180s on a dead connection before retrying (Linux)
- [BUG] ECONNRESET on direct ISP path: Anthropic ingress resets TLS 1.3 handshakes carrying X25519MLKEM768; classical key share or VPN is 12/12 (re-open of #74767, still on 2.1.270)
- Auto mode steers the model to Bash, which cuts path-scoped rules off at the knees
- Remote MCP OAuth: shared user-scope refresh token breaks against IdPs with single-use refresh-token rotation (ODC)
- Cloud environments (routines): headless Chromium gets ERR_CONNECTION_RESET on all sites even with Network access = Full (curl works)
- [FEATURE] SSH connections: support OpenSSH certificate authentication (CertificateFile) or delegate to system ssh
- [BUG] [BUG] API Error 400: "The content[].thinking in the thinking mode must be passed back to the API" - frequent interruptions during conversation
- [BUG] Chat tab disappears when switching from Anthropic login to third-party API gateway
- [FEATURE][Trace] Support per-request trace context propagation for LLM API calls
- [Bug] ultrareview timeout shouldn't consume quota credits
- Bash: sleep ≥2s blocked unconditionally, breaking legitimate polling/heartbeat patterns
- [Bug] Rate limit error at 72% token usage
- [BUG] authServerMetadataUrl is ignored when MCP server discovery succeeds — should override, not fallback
- [REPORT] Unauthorized distribution: nilupulk/claude-code-free
- [BUG] MCP Streamable HTTP SSE reconnection regressed in 2.1.83
- Claude Code Web: Go 1.26 not available in container environment
- [Bug] Claude in Chrome WebSocket bridge fails behind Zscaler/corporate TLS proxy (unable to get local issuer certificate)
- HTTP hook intermittently fails with ECONNREFUSED despite healthy server
- [Bug] High CPU usage during idle state
- [BUG] API Error 404 / ECONNREFUSED
- [BUG] statsig sdk not respecting https_proxy/HTTPS_PROXY
- Claude Code v2 not showing the entreprise proxy url in the header
- NO_PROXY environment variable not working for MCP server HTTP calls
- [BUG] Claude CLI on WSL in China fails with ‘unsupported country/region’ error
- [BUG] Cowork (Windows): device VM egress ignores the account Domain allowlist - 403 blocked-by-allowlist while set to All domains
- [BUG] Desktop SSH remote sessions cannot authenticate to hosts that only accept OpenSSH user certificates (ssh2 has no certificate support)
- [BUG] Resuming a fork forfeits its prompt cache: deterministic miss after any tool loop, fork 5m vs parent 1h TTL, full-context rewrites while the prefix is live
- [BUG] Non-streaming retry receives event-stream response (HTTP/2 stream mixup, Intel Mac)
- Recurring ECONNRESET during active sessions, exhausting all 10 retry attempts
- [MODEL] Supporting claims are presented as observed facts when they are inferred, sampled, or unobservable
- [BUG] awsAuthRefresh startup pre-check hangs indefinitely on SSO profiles behind a proxy (>2.1.187 regression — SSO-OIDC call bypasses HTTPS_PROXY)
- [BUG] Claude Desktop on Windows loops on "A new version of Claude is available" with error 1XAF0WC after update
- Remote control: sessions die permanently on session-limit hit and on transient disconnects; mobile app still shows them alive and silently drops messages
- [BUG] Claude Code sessions freeze locally until another session receives input — Desktop app & VS Code only (not web)
- [LSP] Language servers on user PATH not found — "Command 'X' not found or is in an unsafe location (current directory)" (rust-analyzer + clangd, Windows)
- [BUG] 2.1.193 VS Code extension (Windows, native): OAuth login fails "certificate has expired" — regression from 2.1.190
- Claude Desktop Code tab ignores NODE_EXTRA_CA_CERTS on Windows MSIX install behind corporate SSL proxy
- [BUG] Desktop app Cloudflare Turnstile 403 loop on Windows 11
- [BUG] Cowork: all tasks fail with retry loop then ECONNRESET — fails across networks incl. phone hotspot, survived clean reinstall, worked hours earlier same day (macOS 15.7.3, M3)
- Native update/install fails with 'socket connection was closed unexpectedly' behind proxy — undici TLS incompatibility
- [BUG] OTEL metrics not exported on Claude Code ≥ v2.1.113 (confirmed with mTLS configuration)
- [BUG] bun install fails with 503 on private GitHub Packages (sandbox proxy rejects redirect with Authorization header)
- [BUG] Cowork "Failed to create bridge sockets after 5 attempts" after update to 1.3036.0 (cf521c) — macOS Sonoma 14.6.1
- MCP tool `strict` field not forwarded to Anthropic API
- [BUG] [Cowork] VM API unreachable on corporate network — no proxy support in VM environment
- [BUG]
- Sandbox: allowedDomains not enforced for plain HTTP — only HTTPS CONNECT is filtered
- [Bug] `--print` flag returns empty output in version 2.1.83
- [BUG] Claude Code Web: persistent 404 on session_ingress/.../git_proxy/compare — every session fails to initialize
- [Bug/Feature] Fix IME input for Vietnamese, Chinese, Japanese, Korean (character loss)
- [BUG] Request timed out. Check your internet connection and proxy settings
- [BUG] CLAUDE_CODE_API_KEY_HELPER_TTL_MS not working from settings.json
- [BUG] Proxy mode error: Hostname/IP does not match certificate's altnames
- [BUG] Issue in API Error Output & Proxy Handling
- [FEATURE] Support more than one IDE-connected Claude Code session per editor window
- [BUG] Regression 2.1.220 → 2.1.221 (Windows native): direct API connections die with ECONNRESET after first chunk when a Winsock LSP (Proxifier v3) is registered
- [BUG] macOS sandbox blocks Chromium/Playwright launch: bootstrap_check_in denied — no mach-register allowance exists, allowMachLookup cannot help
- [FEATURE] Let cloud sessions comment on public repos the user cannot push to
- [BUG] Remote Control bridge registration sent as plaintext HTTP through proxy instead of CONNECT-tunneling
- [Bug] GitHub API requests blocked by proxy egress policy with HTTP 502 in scheduled routines
- [BUG] "Failed to save changes" error when enabling unrestricted git push permission
- [BUG] Desktop SSH remote fails ("Failed to upload file: file does not exist") through JumpServer/Koko bastion — server bootstrap uses SFTP upload; VS Code Remote-SSH works via exec channel
- [Bug] Agent team tools not injected after auto-update to v2.1.178
- [Bug] Claude Cowork fails to start on macOS arm64: Missing Claude Code binary and SSL protocol error
- Support skipping GCP auth in Vertex AI mode for proxy-based deployments
- [Bug] Elevated error rate in API responses
- MCP sandbox egress: allow <us2.make.com>
- [FEATURE] Cryptographically signed harness blocks to distinguish Claude Code injections from user content
- Gateway model discovery does not use apiKeyHelper for authentication
- Claude-3p + Bedrock: managed-settings allowedDomains not honored, sandbox pinned to 4 hosts
- Interactive Bash tool hangs after successful execution; tool_result is not written to session/UI
- [BUG] Routines /run endpoint returns HTTP 400 "trigger_id: Extra inputs are not permitted" — both web UI and RemoteTrigger tool affected
- [Feature] OnApiRetry hook event for observability and control over internal retry behavior
- Managed Agents: gmail.googleapis.com blocked by egress proxy even with explicit allowed_hosts
- [FEATURE] Allow faster retry when network connectivity is restored during backoff
- [Bug] Token limits depleting rapidly across sessions
- [BUG] NO_PROXY completely ignored — Claude Code v2.1.83 routes all traffic through forward proxy regardless
- ACP UsageUpdate.cost reports Sonnet pricing for Opus 4.6 model
- sandbox.network.allowedDomains does not work for Node.js processes (DNS resolution blocked)
- [BUG]
- [Bug] Voice mode connection failure: network error handling
- Remote control WebSocket disconnects every ~25 minutes due to server-side connection lifetime limit
- Native installer stuck on 2.1.39 - doesn't update to latest (2.1.47)
- [BUG] Notion MCP blocked by proxy in Cowork sessions - mcp.notion.com not on allowlist
- Continuous undisclosed network calls to datadoghq.com every few seconds
- Intermittent connection failures in Claude Code on WSL2
- [BUG] MacOS: Failed to start OAuth callback server: Failed to start server. Is port 0 in use?
- [BUG] Claude Code OAuth authentication fails in proxy environment (Remote Development)
- [Feature Request] Increase default context window size for subscription tier
- [BUG] Sub agents are not getting the custom model in SDK / CLI
- [BUG] API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"tools.26.custom.name: String should match pattern '^[a-zA-Z0-9_-]{1,64}$'"}}
- [BUG] Support ANTHROPIC_BASE_URL
- [BUG] Cloud environment setup script gets HTTP 503 through the security proxy; the identical curl succeeds when the agent runs it in-session
- [Bug][cyber] Safety block halted authorized reverse-engineering of my own drone's auth protocol, mid-secret-re (req_011CcnReWU19UF1bg7REcCRy)
- [BUG] Persistent intermittent ECONNRESET ("socket closed unexpectedly") on Claude Code — macOS, multi-day, recurring across sessions
- [BUG] Model discovery incompatible with hybrid claude.ai/gateway authentication
- [BUG] Claude Managed Agent internal proxy throwing 503 when interacting with Git
- [MODEL] Opus 4.8 (max effort) likely hallucinated a prompt-injection in tool output, then acted on it for many turns
- Claude Code 2.1.143 silently hangs MCP tool calls after SSE drop — client logs the drop but does not fail or reconnect
- 2.1.141 regression: streaming stalls → sdk_stream_ended_no_result had_error:true on large conversations; 2.1.140 unaffected
- [Perf/Cost] Tool catalog (~24k tokens) sent uncached on every API request — cache_control breakpoint missing
- [BUG] xhigh effort tier quality regression on Opus 4.7 — recommend medium until investigated
- [DOCS] Login troubleshooting page missing "OAuth not allowed for organization" guidance
- Improve sandbox support for erlang / elixir
- [Bug] Socket Connection Closed Unexpectedly During API Request
- [BUG] Cowork SSL certificate expired error on Windows 11 Enterprise — API calls fail before VM rootfs download completes in v1.3561.0
- Inconsistent temporal context: models often operate without knowing the current date
- Cowork/Dispatch VM spawns fail with "Failed to create bridge sockets after 5 attempts" after MSIX 1.2773.0.0 → 1.3036.0.0 update (Windows 11)
- Remote triggers: MCP tools fail to load and network proxy blocks outbound HTTP after initial run
- [BUG] Cowork plugins installed via marketplace are immediately removed as NOT_AVAILABLE on next sync — skills never load
- [BUG] Cowork returns 403 on macOS 26.3.1 but works on macOS 26.3
- [BUG] [Cowork] Windows: cowork-vm-nat HNS network permanently breaks WSL2 internet connectivity
- IDE integration does not work inside Docker Desktop sandboxes
- [BUG] Interactive mode fails with ECONNRESET while -p (print) mode works fine
- [BUG] Title: "Panel (New Tab)" option in preferredLocation setting does not work
- [BUG] Issue with Atlassian MCP
- Add claude clean command to manage cache and logs
- [Bug] Anthropic API Error: Missing Tool Result Block
- [BUG] Unable to use HTTP proxy settings
- Anthropic Infrastructure Backend Regression
- Connecting to api.anthropic.com eventhough configured for bedrock
- [BUG] Turns hang ~6 minutes then "Connection dropped (ECONNRESET)", sudden onset 2026-09-28, across all sessions on one Mac
- [GitHub integration] Chat-Project cloud session (linked to desktop app) cannot push or call GitHub API on repos the Claude GitHub App is installed on; no way to add session sources; Claude Code Projects not rolled out to account
- [BUG] --resume never hits the prompt cache past the static prefix on Fable 5.1 (opus hits): session-start context message is replayed as a plain string instead of the content blocks it was sent with
- Browser pane: no way to trust private-network origins — per-action prompts and blocked subresources on LAN-resolving HTTPS sites
- [FEATURE] Custom connectors: support static request headers (e.g. `Authorization: Bearer …`) — currently OAuth-only, forcing `mcp-remote` stdio shims
- [BUG] Cowork scheduled tasks: WebFetch permission gate (PROVENANCE_REQUIRED) blocks unattended runs on parallel calls
- [BUG] [BUG] Persistent ECONNRESET on v2.1.228 (post-fix) — all networks, all local causes eliminated incl. full AV uninstall; claude.ai chat works fine on same account
- Native Grep/Glob tools missing from tool roster (claude-fable-5, tool search enabled)
- [BUG] ECONNRESET on every request — Windows 11; curl and Node.js connect fine; both native and npm installs fail
- [BUG] ECONNRESET on streaming API calls: bundled Bun HTTP client fails while Node.js/curl succeed identically (Windows, VPN-independent, survives reinstall)
- [BUG] stdio MCP server always times out at ~30000ms on Windows, even though it connects via MCP Inspector)
- [BUG] All models fail with ConnectionRefused while the same OAuth token reaches the API (macOS, 2.1.219–2.1.220)
- Remote Control (server mode): 'failed to disconnect' — TypeError reading 'session_url'
- ECONNRESET reliably triggered by image upload (even <1MB, single/first images)
- [BUG] Multiple concurrent local sessions race on OAuth refresh-token rotation → near-daily forced /login