Software troubleshooting desk

Practical fixes for tool errors, setup blocks, and workflow issues.

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Nginx Upstream Connection Refused Error

When Nginx returns upstream connection refused in your error logs, it means Nginx tr...

Fix Python Permission Denied When Installing Package in Virtual Environment

You activate your Python virtual environment, run pip install somepackage, and get a...

Chrome Extensions Not Loading: Fix 'Permission Denied' Errors

You install or update a Chrome extension, but it refuses to load. Instead, you see a Perm...

Fix DNS Probe Finished NXDOMAIN Caused by Antivirus Blocking
You try to load a website and see DNS_PROBE_FINISHED_NXDOMAIN in Chrome, or simi...

Fix Nginx Upstream Connection Refused Socket Error
When Nginx returns a 502 Bad Gateway or logs upstream connection refused

Fix Windows 11 No Internet but Wi-Fi Connected DNS Issue You see the Wi-Fi icon connected with full bars, but apps, browsers, and system updates all repor...

Issue queue Sitemap Windows Search Index Exclusion Not Working Fix Taskbar Icons Missing at Boot? Try These Fixes How to Fix DNS_PROBE_FINISHED_NXDOMAIN on WiFi How to Fix 'No Space Left on Device' in Docker on Ubuntu Fix Windows 11 Update Stuck at 0% During Setup Nginx 403 Forbidden Static Files Fix How to Set Up Windows Search Indexing Cloudflare Wildcard SSL Not Working? Try These Fixes Fix pnpm Store Path Errors Windows 11 Bluetooth Not Working? 10 Troubleshooting Steps How to Stop Chrome Access Violation from Antivirus Resolve Stale Git Lock File During Pull Desk note Troubleshooting paths Home Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities