I am using squid with basic authentication. If a user the first time access internet he is asked for login information. Now there is a strange situation with the following link: https://www.gmsupplypower.com/apps/r4ps/portal/dt?action=content&provider=DetailContainer&type=4&pageName=UserProfile.jsp&program=UserProfile. If the user is logged in to squid (that means has already accessed internet) this links works fine. If the user is not logged in to squid klicking on this link leaads to (1) starting Internet Explorer (6.0 SP1) (2) asking for login information for squid - user enters this information (3) error message: Invalid URL Während des Versuches, den URL /apps/r4ps/portal/dt?action=content&provider=DetailContainer&type=4&pageName=UserProfile.jsp&program=UserProfile zu laden, trat der folgende Fehler auf: Ungültiger URL Obviously the first part of the URL is cut. (4) Klicking "refresh" on IE the website appears. Squid Cache: Version 2.5.STABLE9 configure options: --enable-auth=ntlm,basic --enable-external-acl-helpers=winbind_group --enable-basic-auth-helpers=winbind --enable-ntlm-auth-helpers=winbind --prefix=/usr/local/squid --with-samba-sources=/usr/local/samba-2.2.5 access.log: 1117008532.522 0 10.23.8.52 TCP_DENIED/407 1382 CONNECT www.gmsupplypower.com:443 - NONE/- text/html 1117008533.814 39 10.23.8.52 TCP_DENIED/400 1821 GET /apps/r4ps/portal/dt?action=content&provider=DetailContainer&type=4&pageName=UserProfile.jsp&program=UserProfile - NONE/- text/html 1117008541.484 4492 10.23.8.52 TCP_MISS/000 30024 CONNECT www.gmsupplypower.com:443 gm127558 FIRST_UP_PARENT/frd-proxy - Mit freundlichem Gruß/Yours sincerely Werner Rost GMT-FIR - Netzwerk ZF Boge Elastmetall GmbH Friesdorfer Str. 175, 53175 Bonn, Deutschland/Germany Telefon/Phone +49 228 3825 - 420 Telefax/Fax +49 228 3825 - 398 werner.rost@xxxxxx