Webmail not working when connecting through NLB name, but it work fine using the individual node name. It has been working fine untill now but some how it stopped working. Also, I do see that 1 out of 4 times it do get connected using NLB name but continues to ask for passoword. Also, our active Sync is affected by this.I do see that for 2 out of 4 NLB nodes are not shown in NLB cluster and in log it shows "Access denied - error connecting to the Node". I have already tried rebooting all the nodes in the NLB cluster.Exchange setup: 4 CAS/HUB server confgured in NLB, 4 Mailbox server

Could be a permissions or UAC issue however this is probably a better question for a Windows Forum as it is not an Exchange specific issue:http://social.technet.microsoft.com/Forums/en/category/windowsserver/

Thanks Andy. I have logged a call with MS.

Please update at here if there's any further progress on the issue

There has not been any solution yet to this issue.. It seems that the issue is happening only once is a week..and we have been working with MS and have not been able toget tothe root of this issue. Would update when we get any soulution to it.

Cool!James Luo TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx) If you have any feedback on our support, please contact tngfb@microsoft.com