"Unable to update public free/busy data. network problems arepreventing connection to the microsoft

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A

Alan

Hello,

We have Exchange 2003 with Outlook 2002 clients. Sometimes, the users

get a popup message saying:

"unable to update public free/busy data. network problems are

preventing connection to the microsoft exchange server computer".

If they click OK, everything works fine and the popup doesn't return.

It seems to happen on first logon in the morning. It's not happening

often, but just enough that they report it.

We have moved the first Exchange server - and its system PFs - to a

new server in the past and we intend to move it again soon. We don't

use the Internet free/busy service, it's options are disabled in

Outlook by GPO.

Can anyone suggest what to check please?

Thanks,

- Alan.
 
M

Mark Arnold [MVP]

Re: "Unable to update public free/busy data. network problems are preventing connection to the microsoft exchange server computer" error.

On Wed, 30 Sep 2009 23:22:18 -0700 (PDT), Alan <bruguy@gmail.com
wrote:


> Hello,

> We have Exchange 2003 with Outlook 2002 clients. Sometimes, the users
> get a popup message saying:
> "unable to update public free/busy data. network problems are
> preventing connection to the microsoft exchange server computer".

> If they click OK, everything works fine and the popup doesn't return.
> It seems to happen on first logon in the morning. It's not happening
> often, but just enough that they report it.

> We have moved the first Exchange server - and its system PFs - to a
> new server in the past and we intend to move it again soon. We don't
> use the Internet free/busy service, it's options are disabled in
> Outlook by GPO.

> Can anyone suggest what to check please?

> Thanks,

> - Alan.


There are a lot of possibilities here.

It could be plain old network stuff.

It could be AD and DNS stuff.

It could be a disk issue as well. That's more likely, especially on

2003.

*Warning, over simplification*...... If users tip enough email into

the system at once the space in memory fills up before the server can

write data to the transaction logs - not necessarily the store right

now, just the logs. If that happens the server has no choice but to

back everyone off until it clears out.

Give us a quick rundown on the number of users, number of disks, RAID,

what those disks as assigned to. Talk physical rather than "my E drive

etc."
 
A

Alan

It's a recently-installed high-end clustered system using a SAN,

designed for several thousand users but we've only got about 100

testers so far...

However, the system/public folders are still on the first Ex2003

server which was installed. That's an older single-server but it has

only a couple of mailboxes and 4gb RAM, RAID1 for system/binaries,

RAID1 for trans logs, RAID5 for dbase, all local storage. High-end

server. I don't think that performance can be an issue.

On Oct 1, 2:11 pm, "Mark Arnold [MVP]" <m...@mvps.org> wrote:
> On Wed, 30 Sep 2009 23:22:18 -0700 (PDT), Alan <bru...@gmail.com
> wrote:

>
> >Hello,

>
> >We have Exchange 2003 with Outlook 2002 clients. Sometimes, the users
> >get a popup message saying:
> >"unable to update public free/busy data. network problems are
> >preventing connection to the microsoft exchange server computer".

>
> >If they click OK, everything works fine and the popup doesn't return.
> >It seems to happen on first logon in the morning. It's not happening
> >often, but just enough that they report it.

>
> >We have moved the first Exchange server - and its system PFs - to a
> >new server in the past and we intend to move it again soon. We don't
> >use the Internet free/busy service, it's options are disabled in
> >Outlook by GPO.

>
> >Can anyone suggest what to check please?

>
> >Thanks,

>
> >- Alan.


> There are a lot of possibilities here.
> It could be plain old network stuff.
> It could be AD and DNS stuff.
> It could be a disk issue as well. That's more likely, especially on
> 2003.
> *Warning, over simplification*...... If users tip enough email into
> the system at once the space in memory fills up before the server can
> write data to the transaction logs - not necessarily the store right
> now, just the logs. If that happens the server has no choice but to
> back everyone off until it clears out.

> Give us a quick rundown on the number of users, number of disks, RAID,
> what those disks as assigned to. Talk physical rather than "my E drive
> etc."
 
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