Antony Stone wrote > Er, I think you mean "intercept"? > > http://www.squid-cache.org/Versions/v3/3.1/cfgman/http_port.html The "intercept" option is the successor of "transparent"? >From which Squid version on? The link above doesn't tell. I run Debian7-shipped Squid3 which is 3.1.20. Antony Stone wrote > And, of course, tell the browser to use the proxy... Sure. Cause found but problem not solved: It's the transparent option! Running as normal proxy server, the portal login runs without problems. Now I have to contact the support of the site again and ask if they really checked it wih a transparent proxy. Thank you very much Antony for the transparent/intercept hint. -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Login-on-WWW-page-fails-without-proxy-there-s-no-problem-tp4662055p4662087.html Sent from the Squid - Users mailing list archive at Nabble.com.