Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Windows Update Connection Refused Due to Proxy Settings

When Windows Update reports a 'connection refused' error, it's often due to a misconfigured proxy...

Microsoft Teams Microphone Setup Checklist

When you join a Teams meeting and no one can hear you, it's usually a microphone setup problem—no...

Fix Docker Build: Repository Does Not Exist or Requires Login

You run docker build and get an error like failed to solve: repository does no...

Jupyter Kernel Not Starting Python Environment: Fixes
You launch a Jupyter notebook, select your Python environment kernel, and the notebook stays stuc...

SSH Permission Denied (Publickey) on EC2: Setup Fixes
If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...

How to Fix Windows Update Error 0x80070002 Stuck Downloading
If Windows Update gets stuck downloading with error 0x80070002, it usually means the update files...


    Issue queue
Sitemap
Resolving Gradle Build Failure: Main Class Missing
OBS Black Screen Troubleshooting Guide
Windows Jupyter Token Not Accepted Fix
Fix Nginx 502 Bad Gateway for WordPress
Troubleshoot WireGuard Handshake Firewall Issues
Fix ERR_SSL_PROTOCOL_ERROR in Chrome: A Practical Guide
Troubleshoot Chrome Profile Sync Paused
Gradle Build Failure Fix Checklist
Troubleshoot 0x800f081f and Restore Health
Troubleshooting Conda Base Environment Activation
Troubleshooting Docker Exit Code 1 Permission Error
Permanently Disable Windows Defender Real-Time Protection
Desk note

    Troubleshooting paths
Home
Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities