How to Fix PuTTY Connection Refused Error
You open PuTTY, enter your server IP or hostname, click Open, and get "Connection refused...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Update Error Due to Port 80 Already in Use
Windows Update may fail with error 0x8024402c or similar when another application is already usin...
Chrome Profile SSL Certificate Error: Step-by-Step Fix
You open Chrome and see a warning like “NET::ERR_CERT_COMMON_NAME_INVALID” or “Your connection is...
Microsoft Store App Download Stuck at 0% Fix
If you're trying to download or update an app from the Microsoft Store and the progress bar stays...
Fix Outlook 504 Gateway Timeout by Clearing Cache
If you're seeing a "504 Gateway Timeout" error in Outlook—especially when connecting to Exchange ...
Fix Command Prompt Cache Clear Not Working
You run ipconfig /flushdns or arp -d in Command Prompt, but cached entr...
Topic paths
Quick titles
Fix Chrome DNS Error Caused by a Corrupted User ProfileRemote Desktop Sync Failure Due to Dependency IssuesWindows Search Index Cache Reset GuideBitLocker Login Loop After Windows 11 Update: How to FixBitLocker Settings Reset Checklist for IT AdminsHow to Fix Windows Terminal Permission Denied ErrorsFix Chrome Profile 502 Bad Gateway on MacMicrosoft Store CPU Spikes: How to Fix