Smartphone Occasionally Prompted for Credentials

Another hit for Jason Jones and Jim Harrison!

“Think this is sorted now.

I needed to disable the “apply session timeout to non-browser clients” in the advanced form options for the web listener that was shared for OWA and ActiveSync. If you follow the built-in wizards, this option is disabled by default for any listener that is selected for ActiveSync use – that’ll teach me!

Thanks to Jim Harrison for the pointers!

“You don’t want the FBA timeout applied to EAS clients.
The folks in Exch, WM6 and ISA all agreed that a wide-open 30-minute timeout was good for  battery life.  If you close that sooner, the client has to re-authenticate.”

So there you go — those wizards do bear magic!

For the complete thread, go here:



Thomas W Shinder, M.D.


Email: [email protected]

MVP — Microsoft Firewalls (ISA)

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