Pretty sure a 401 is a permissions issue, which would mean they are actually connecting but getting denied access to the mailbox.
However, whenever you're talking about ISA and a front-end problem, the first thing I always look at is if there's a certificate issue of some sort.
Basic questions to investigate:
1. Is it just the one guy failing, or does everyone fail? Can any devices connect?
2. Was the device able to conenct before your changes? After your changes? Did it stop working only after your fix went in?
3. He didn't happen to change his network password recently, did he? perhaps his saved password on the device is just wrong?
The Sales guy tells me that ActiveSync fails to connect with 401 or 403 errors.
From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Patrick
Sent: Tuesday, May 19, 2009 3:07 PM
Subject: [ExchangeList] Re: OWA Exchange 2003 with ISA 2006 problemYes,What is the problem you are experiencing?ThanksPatrick
From: Todd Lemmiksoo <tlemmiksoo@xxxxxxxxxxxx>
Sent: Tuesday, May 19, 2009 2:13:22 PM
Subject: [ExchangeList] Re: OWA Exchange 2003 with ISA 2006 problem
I found my problem and OWA is working again. The ActiveSync rule messed up the SSL listener authentication for OWA.Has anyone have Exchange ActiveSync working with OWA with ISA 2006?
From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Todd Lemmiksoo
Sent: Monday, May 18, 2009 2:19 PM
Subject: [ExchangeList] OWA Exchange 2003 with ISA 2006 problem
A problem started this weekend where my OWA users are being prompted to change their network password even if it is not ready to expire. After they change their password successfully they are denied access. I can use OWA inside the network without any trouble and I not get the change password screen. I do not have a copy of the denied access screen, will try to get one tonight.
Last week I was making changes to Exchange and ISA to give access to OMA and Exchange ActiveSync. How would this have caused the change password screen to be presented to the OWA users.
All-Mode Communications, Inc.
1725 Dryden Road
Freeville, New York 13068
(607) 347-4164 x440
1-877-ALLMODE (toll free)