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

Fix Maven Dependency Resolution Failed in IntelliJ

Fix Windows Security Token Expired Error 0x80070520

You see error 0x80070520 with the message 'The security token has expired.' This usually happens ...

Fix DNS Probe Finished No Internet Error in Command Prompt

When you see the error "DNS probe finished no internet" in a browser or Command Prompt, your devi...

How to Fix Chrome Profile 502 Bad Gateway Error

If you see a "502 Bad Gateway" error in Chrome, especially after switching profiles or updating t...

How to Fix Microsoft Store Network Error

You open the Microsoft Store to download an app or update, and instead you see a network error me...

Fix Ubuntu Task Scheduler Not Working After Update

After a system update, you may find that scheduled tasks (cron jobs or systemd timers) no longer ...