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Posted by Brendan Helsham on September 11, 2007, 2:02 am
Please log in for more thread options You can't do this because the network uses a Cisco ASA Firewall (not a
router), so it is not possible to connect to the external/public IP from in
side the network.
Cheers
"Chris De Herrera" wrote:
> Hi,
> I suggest that the company allow you to sync with the external IP address
> even within the company. This can be done by ensuring that the host name
> internally and externally resolves to the external IP.
>
> If this is not done then you may have problems because of the DNS caching of
> the IP.
>
>
> --
> Chris De Herrera
> http://www.pocketpcfaq.com
> http://www.tabletpctalk.com
> http://www.pocketpctalk.com
> http://www.mobilitytalk.com
>
> Windows Mobile Device Center FAQs -
> http://www.pocketpcfaq.com/faqs/wmdc/index.htm
> ActiveSync Troubleshooting Guide -
> http://www.pocketpcfaq.com/faqs/t-shootactivesync.htm
>
> > Hello
> >
> > I have a found a lot of posts on the Internet regarding this problem.
> > After
> > some exhaustive research and testing on my end, I feel as though I have
> > narrowed this down a little; unfortunately, I have not resolved the
> > problem
> > as yet.
> >
> > I currently have the following hardware/software configuration
> > * HTC P3600i Phone (Dopod D810X)
> > * Windows Vista Business (on desktop & laptop) + WMDC for Vista
> > * Exchange Server 2003 SP2 (on Windows 2003 Server SP1) + latest hotfixes
> > * Cisco ASA5505 Firewall configured to allow SSL to Exchange Server
> >
> > When connected to my desktop or laptop, the servername resolves to an
> > internal IP (192.168.8.1) and when connected OTA via my mobile carrier
> > (Telstra in Australia), the servername will resolve to the public IP
> > address
> > of 203.206.x.y etc.
> >
> > I found a nice screenshot of the exact problem at
> > http://discussion.treocentral.com/showthread.php?t=136358 and I have the
> > following comments to add wrt my findings....
> >
> > * If I reboot my phone with the USB cable connected, I can use USB but not
> > OTA sync until I reboot again
> > * If I reboot my phone and use OTA sync, I cannot use USB until I reboot
> > again
> > * I found some posts that indicate this to be a DNS Cache problem (sounded
> > promising as the mail server will resolve to a different IP via USB
> > compared
> > to OTA sync) but I tried making these registry changes on the Phone with
> > no
> > success. There seems to be a bit of confusion as to whether this key is
> > DnsCacheEnable or DNsCacheEnabled. There are references to this reg
> > change
> > at
> >
http://www.microsoft.com/communities/newsgroups/en-us/default.aspx?dg=microsoft.public.pocketpc.activesync&tid=75360955-a232-4985-acb2-b55f30cfe23c&p=1
> > but I had no success with either setting.
> > * I have other clients that also have the same problem and they have a
> > range
> > of different phone hardware (eg: iMate SP5) and client software (Windows
> > XP),
> > so it does not seem to be specific to the phone or the PC, more
> > specifically
> > to Windows Mobile and Exchange Activesync.
> >
> > Has anyone else got as far as this, or perhaps, further? I would expect
> > that this is fixable, but knowing what little tweak is needed has escaped
> > me
> > so far.
> >
> > Thanks in advance
> >
> > Cheers
> > -Brendan
>
>
>
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