Thread:Extension talk:WYSIWYG/WYSIWYG works by IP but not by URL/reply (4)

Wysiwyg is not using that variable directly as far as I know. I am using our wiki through vpn connection and it works without problems so it I think this is not general problem.

My wiki is from fresh install of MW 1.22, and variable "$wgServer = " is there by default, comment of that line is.

Could you try adding line  in your LocalSettings.php to see if it has any positive effect.