When using AD SSO the SSO debug log show that I'm authenticated but I still get the login page.
2019-11-20 15:18:38: NtlmSecurityProvider: NTLM2 Session Security was not negotiated
2019-11-20 15:18:38: NtlmSecurityProvider: Acceptor negotiated NTLMv2
2019-11-20 15:18:38: HttpSecurityService: 192.168.9.38:50891: DOMAIN\User successfully authenticated
2019-11-20 15:18:38: HttpSecurityService: 192.168.9.38:50891: Installing SecurityProvider state
2019-11-20 15:18:38: HttpSecurityService: MaxInactiveInterval is short (360 minutes), session-timeout = 600 is recommended
2019-11-20 15:18:38: HttpSecurityService: 192.168.9.38:50891: SecurityProvider state installed
2019-11-20 15:18:38: HttpSecurityService: isProtected=true, token=false, credential=null, provider={ntlmssp.challenge.flags=0x22898205, service.acctname=ServiceDesk$@COMPANY.LOCAL, msrpc.useNamedPipe=false, domainname=company.local, fallback.location=HomePage.do, bindstr.url=ldap://company.local, ntlmssp.account.name=ost, dns.site=DC01.company.local, service.password.encrypted=tBuh2l11VwV+lc/Q39ZXvD9sWV9RjT4akKGl7umWoifVjbluAxRspQ==, account.canonicalForm=3, dns.servers=192.168.9.10, localhost.netbios.name=ServiceDesk, bindstr=company.local, ntlmssp.flags=0x22898205, log.level=5, log.path=C:\Program Files\ManageEngine\ServiceDesk\bin\..\\logs\sso.log}, isLogout=false, isAnonymous=false, isChallengeRequired=false, isUnauthorized=false, isForbidden=false, connectionId=192.168.9.38:50891, authContexts.size=0
2019-11-20 15:18:38: HttpSecurityService: calling chain.doFilter