Every time I'm uploading something from my local connection (e.g. a video to youtube) I can't access my site through lslb (also the admin panel). I always receive a white page until the upload stops. If I directly access one of the backend servers it works fine. Live HTTP headers recording (I only receive a HTTP/1.x 200 OK): Code: GET / HTTP/1.1 Host: www.domain.com User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; de-DE; rv:188.8.131.52) Gecko/20091221 Firefox/3.5.7 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: de-DE,de;q=0.7,chrome://global/locale/intl.properties;q=0.3 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 300 Connection: keep-alive Cookie: *censored by me* Cache-Control: max-age=0 HTTP/1.x 200 OK the error.log doesn't tell me anything.