Fixed by deleting local Jenkins cookie in IE. David
From: jenkinsci-users@googlegroups.com [mailto:jenkinsci-users@googlegroups.com] On Behalf Of David Aldrich Sent: 26 March 2014 08:36 To: jenkinsci-users@googlegroups.com Subject: Can't login to Jenkins after upgrading to 1.556 Hi Yesterday I upgraded to Jenkins 1.556. Today I cannot login to Jenkins. I see: HTTP ERROR 404 Problem accessing /jenkins/;jsessionid=hzlep1bpxdsuice7835saxjf. Reason: Not Found How can I recover from this please? Best regards David -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.