Knowledge base for software setup, errors, and daily tool work.

Fix ERR_CONNECTION_RESET on Chrome for Android

If you see the ERR_CONNECTION_RESET error in Chrome on your Android phone or tab...

VSCode Breakpoint Not Hit Due to Source Maps: Fix

You set a breakpoint in your TypeScript or React source file, start debugging, and the breakpoint...

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

How to Fix Limited Connectivity on Windows 11 Wi-Fi

You connect to Wi-Fi but see "Limited connectivity" or "No internet, secured." Yo...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Windows 11 Update Stuck at 0% Due to Corrupt Files: Fixes

You start a Windows 11 update, and it hangs at 0% for minutes or hours. Corrupt system files are ...