Dear All, Yesterday I have created one test lab for exchange 2010. Servers details and roles are below. Till yesterday, I am able to logon the mailbox through OWA without any issue and able to send and receive the mails. Now in the morning, I have configured one more MBX server and added this on existing DAG. Created one more new dbase and created the slave copy in secondary. After that I have done the setting on IIS to redirect the HTTP request to HTTPS and SSL setting as well. Now when I am trying to open the OWA URL, its opening very fine and redirection is also working fine. When I enter the user name and password, its just showing the process windows only and not open the mailbox. While my GCS, CAS and MBX servers are running fine, I am able to move or activate the another passive dbase copy. Able to create new mailbox without any problem. When I try to run netstat n command its showing only CAS and GCS server name and ports status, no name of MBX server and ports. All ports are opened with all each servers. GCS:- 2 (windows 2008 R2) CAS:- 1 (windows 2008 R2) HUB:-1 (windows 2008 R2) MBX:-2 (windows 2008 R2)

HI, Go through below link to specify CAS server for new mailbox server. http://technet.microsoft.com/en-us/library/bb125157.aspx (Set-ClientAccessServer) http://technet.microsoft.com/en-us/library/aa998359.aspx In exchange 2010 all client request are goes through CAS server.Hence command netstat n gives the CAS server name. ref : http://technet.microsoft.com/en-us/library/bb124915.aspx Hope it will helpful for you. Regards, Manoj

Dear Manoj, Thanks for reply. issue was resolved on the same day. I have disabled the windows firewall on all the servers and reset the setting again on IIS. After doing this, I am able to access the mailbox through OWA. issue was related to IIS setting. but I am little bit surprised that I done all the setting in correct manner but issue was reported. Now today again I done the same setting and its working fine now.<o:p></o:p> At last thanks to all.<o:p></o:p> Regards Manjeet Singh