Hi, Is anyone aware of any problems with ActiveSync when ISA is configured to use FBA with fallback to basic? We have recently moved to a single web listener as part of our Exchange 2007 upgrade and users are now getting intermittent password prompts when ActiveSync tries to authenticate to ISA. If users provide their credentials, the connection is successful. I have also seen the issue at a couple of customers in the past, but assumed it was a device issue. If we go back to a second listener configured for basic authentication only (not HTML forms) users are no longer intermittently prompted and stability is good. Ideally, I would like two listeners, one for OWA/ActiveSync using FBA and one for Outlook Anywhere using Integrated (with KCD). Any sneaky KBs I may have missed?? Cheers in advance... JJ