SUPPORT
Why verification fails even the fingers were enrolled? TOP
Many Linux distributions provide MediaWiki in a packaged format for that distribution. The MediaWiki development team refers you to your Linux distribution for assistance with installing, configuring or using them. The individual communities & companies who maintain such packages should provide installation instructions.

Be warned that third-party distributions may be older versions, so pay close attention to compatibility information for directions and extensions.
Why prompt verification error under different verification means? TOP
File uploads are an often-used feature of MediaWiki, but are disabled by default in all current release versions. To enable them, first make the upload directory (default images) writable by the web server (chmod 777 or allow the Apache user to write to it, etc.) then set $wgEnableUploads to true in LocalSettings.php (i.e. "$wgEnableUploads = true;"). See Manual:Configuring file uploads for more information.

MediaWiki allows embedded math formulas via a helper program called texvc that uses LaTeX to render the formulas. See Manual:Math for setup instructions.
Why T&A fails to connect with PC? TOP
File uploads are an often-used feature of MediaWiki, but are disabled by default in all current release versions. To enable them, first make the upload directory (default images) writable by the web server (chmod 777 or allow the Apache user to write to it, etc.) then set $wgEnableUploads to true in LocalSettings.php (i.e. "$wgEnableUploads = true;"). See Manual:Configuring file uploads for more information.

MediaWiki allows embedded math formulas via a helper program called texvc that uses LaTeX to render the formulas. See Manual:Math for setup instructions.