[xwiki-users] Apache/Tomcat-configuration, no login possible

Hello, i have installed XWIKI Enterprise 4.2 on a Tomcat-server with Apache in front. Direct access on Tomcat-URL is OK. But if go over Apache and try to login the message occurs: "Unauthorized: This server could not verify that you are authorized to access the document requested. Either you supplied the wrong credentials (eg, bad password) or your browser doesn't understand how to supply the credentials required. The browser's URL is redirected to https://mysub.mydomain.com/xwiki/bin/login/XWiki/XWikiLogin?xredirect=%2Fxwi... xwiki.cfg is configured with: xwiki.home=https://mysub.mydomain.com/xwiki/ xwiki.url.protocol=https xwiki.webapppath=xwiki/ Do you have a hint ? Thanks in advance. Best regards Ingo