web access for outlook

  • Thread starter Thread starter Malcolm
  • Start date Start date
M

Malcolm

my web acess via explorer works fine in the uk but now i
am in spain it accepts my login and starts loading but
stops loading and the log in dialog box redisplays with
the info i typed in displayed. I can't get past this. Has
anybody got any ideas? (i got friend in the UK to check
it and it works fine)

I am accessing the web via shared ADSL connection,
 
That is what i thought at first but can't see why when
everything else i try on the web works fine. Can you
explain this?
 
Could be a few things, make sure that you have a language specified under
tools > internet options, you don't mention internet explorer version but if
5 and above see if it works on version 4, by the way what version of
Exchange
 
thanks for yr input...this is driving me bonkers... i was
relying on access whilst abroad.

yes i do have uk eng specified

am running the very latest version of IE6 with all
updates installed.

don't have access to IE V4

Exchange is 2000

any other ideas?

Could it be a firewall prob?

I don't think our community network has a HW firewall but
it might. Should i Bother to find out ? If it does have
one can we open a port to sort the prob?

I have Zone alarm on my pc but have turned it off to no
avail.
 
I'm betting its a proxy issue it could be that it isn't allowing web dav
packets which is why I suggested trying it on IE version 4, have you a dial
up accounts that you can test on using a different ISP connection type..
Another equally frustrating option (because its probably out of your hands)
is to have the Exchange administrator change from http to https (Secure
Socket Layer) this would overcome any proxying carried out.
 
1. I don't understand what you mean "its a proxy issue it
could be that it isn't allowing web dav packets" .. Plse
can you explian. I am not brill at coms.

2. Why is it that it works ok in the uk on a pc using IE6
but not here in spain?

I am travelling quite a bit this year. Am i likly to get
this prob in internet cafes wherver i go?

3. it's my Company so I can change the server. What do i
change where is it and what is the downside?

4. i can prob set up a "pay as you go" dial up and test
it. I will look into this.
 
To answer all your questions I have pinched a post by a Microsoft Support
Engineer (Rosa Yang), sorry its long but it excellently covers all your
questions:

<Start of paste>
- A firewall or proxy server between the client computer and the server is
blocking requests from the browser on the client computer. For more
information, please see this KB article
Q296232 XCCC: Empty Inbox When Using Internet Explorer?5 and Later to Gain
Access to OWA
http://go.microsoft.com/fwlink/?LinkId=3052&ID=296232.

- The user¡¯s browser is not configured to allow Microsoft ActiveX controls
to run. Outlook Web Access?2000 with Internet Explorer?5 or later does not
require the user to download any new ActiveX controls, but it does take
advantage of existing controls.
To see if ActiveX controls are permitted to run in Internet Explorer:
a. In Internet Explorer, on the Tools menu, click Internet Options.
b. On the Security tab, click the zone to which your Exchange server
belongs, and then click Custom Level.
c. Under Settings, scroll down to Run ActiveX controls and plug-ins and
Script ActiveX controls marked safe for scripting, and then ensure that
these options are set to Enable.

If the above doesn't work then:

It is most likely that the WebDAV methods is not supported by the firewall.
Full Web-based Distributed Authoring and Versioning (WebDAV) support is
mandatory in order to access Exchange 2000 OWA through a proxy server or
firewall with Internet Explorer 5 or later.

To better understand this issue, we can take a look at the two versions of
OWA, the "rich" version, and the "reach" version. The one that you receive
depends on the Web browser that you use to access OWA. With Microsoft
Internet Explorer version 5.0 or later, you receive the rich client; with
all other browser versions, you receive the reach version. The server
determines the browser that the client is using from the User-Agent HTTP
header that the browser sends to the server with every request.

The rich client version of OWA takes advantage of the Microsoft XML control
on the client side and makes custom HTTP-DAV requests to the server by
using verbs such as SEARCH and PROPFIND. Some firewall and proxy servers do
not support these verbs and block requests, which results in the Web
browser failing to access OWA. The reach client is not affected because it
only uses standard HTTP verbs such as GET and POST.

Here are two workarounds for your reference:

- METHOD 1: Force OWA to treat Internet Explorer version 5.0 and later as
earlier versions. For additional information about how to force OWA to
treat Internet Explorer version 5.0 and later as earlier versions, please
refer to the following Microsoft Knowledge Base article:
Q296232 XCCC: Empty Inbox When Using Internet Explorer?5 and Later to Gain
Access to OWA
http://go.microsoft.com/fwlink/?LinkId=3052&ID=296232.

- METHOD 2: Use Secure Sockets Layer (SSL) on the OWA Web site to encrypt
the HTTP traffic so that the firewall cannot determine which HTTP verbs are
being sent.

The detailed steps are listed in this document:
320291.KB.EN-US XCCC: Turning On SSL for Exchange 2000 Server Outlook Web
Access
http://support.microsoft.com/default.aspx?scid=KB;EN-US;320291
<End of Paste>

The only downside I have had with SSL is the initial authentication is
slooooow. Hope this helps
 
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