2nd nic breaks Activesync / OMA

2nd nic breaks Activesync / OMA

When I enable a second NIC on my exchange server activesync no longer works.

Accessing https://ExchangeServer/oma with IE produces the error "A system 
error has occurred while processing your request. Please try again. If the 
problem persists, contact your administrator." 

Disabling the 2nd nic corrects the problem, activesync works etc.

I need the 2nd nic for iSCSI storage.  If anyone has a solution I would 
greatly appreciate your help.

Regards

date: Mon, 17 Mar 2008 08:54:01 -0700 author: Rob Gault alias

Re: 2nd nic breaks Activesync / OMA

On Mon, 17 Mar 2008 08:54:01 -0700, Rob Gault
<dba60f76-2100312461@nospam.postalias> wrote:

>When I enable a second NIC on my exchange server activesync no longer works.
>
>Accessing https://ExchangeServer/oma with IE produces the error "A system 
>error has occurred while processing your request. Please try again. If the 
>problem persists, contact your administrator." 
>
>Disabling the 2nd nic corrects the problem, activesync works etc.
>
>I need the 2nd nic for iSCSI storage.  If anyone has a solution I would 
>greatly appreciate your help.
>
>Regards
The 2nd nic shouldn't have a gateway, any DNS, any Netbios, any F&P
for MS networks or anything else. It should be just like a cluster
heartbeat connection. Can you confirm that to be the case. You'll also
need to go into IIS and change "all unassigned" to the specific IP of
the user network.

date: Mon, 17 Mar 2008 12:03:34 -0400 author: Mark Arnold [MVP]

Re: 2nd nic breaks Activesync / OMA

Have you tried not binding the second NIC (its IP addresses) to IIS?
-- 
Bharat Suneja
MVP - Exchange
www.zenprise.com
NEW blog location:
exchangepedia.com/blog
----------------------------



"Rob Gault" <dba60f76-2100312461@nospam.postalias> wrote in message 
news:C155DA70-A925-4952-912C-ED592051A671@microsoft.com...
> When I enable a second NIC on my exchange server activesync no longer 
> works.
>
> Accessing https://ExchangeServer/oma with IE produces the error "A system
> error has occurred while processing your request. Please try again. If the
> problem persists, contact your administrator."
>
> Disabling the 2nd nic corrects the problem, activesync works etc.
>
> I need the 2nd nic for iSCSI storage.  If anyone has a solution I would
> greatly appreciate your help.
>
> Regards

date: Mon, 17 Mar 2008 21:01:54 +0100 author: Bharat Suneja [MVP]

Re: 2nd nic breaks Activesync / OMA

The nic is to be used for iSCSI, the only thing that is enabled on it is 
tcp/ip.  I have not assigned any DNS, or gateway and I've disabled NetBIOS on 
the nic.  

I have also changed the listening address of the default web sit in IIS to 
listen to the correct address.



"Mark Arnold [MVP]" wrote:

> On Mon, 17 Mar 2008 08:54:01 -0700, Rob Gault
> <dba60f76-2100312461@nospam.postalias> wrote:
> 
> >When I enable a second NIC on my exchange server activesync no longer works.
> >
> >Accessing https://ExchangeServer/oma with IE produces the error "A system 
> >error has occurred while processing your request. Please try again. If the 
> >problem persists, contact your administrator." 
> >
> >Disabling the 2nd nic corrects the problem, activesync works etc.
> >
> >I need the 2nd nic for iSCSI storage.  If anyone has a solution I would 
> >greatly appreciate your help.
> >
> >Regards
> The 2nd nic shouldn't have a gateway, any DNS, any Netbios, any F&P
> for MS networks or anything else. It should be just like a cluster
> heartbeat connection. Can you confirm that to be the case. You'll also
> need to go into IIS and change "all unassigned" to the specific IP of
> the user network.
>

date: Mon, 17 Mar 2008 09:11:04 -0700 author: Rob Gault alias

Re: 2nd nic breaks Activesync / OMA

Yes I've done that.


On 3/17/08 4:01 PM, in article OBHEFhEiIHA.4844@TK2MSFTNGP06.phx.gbl,
"Bharat Suneja [MVP]"  wrote:

> Have you tried not binding the second NIC (its IP addresses) to IIS?

date: Mon, 17 Mar 2008 12:16:57 -0400 author: Rob Gault

Re: 2nd nic breaks Activesync / OMA

I don't "do" anything fancy to the boxes I connect to iSCSI it's a
Windows problem rather than Exchange. Focussing on that then, what's
the binding order on the cards? The user card should (obviously) be at
the top.

date: Mon, 17 Mar 2008 13:20:54 -0400 author: Mark Arnold [MVP]

Re: 2nd nic breaks Activesync / OMA

Thank you very much for your help, that fixed it!

I would love to know why when the OS is installed it always reverses the 
order of the nics from the physical order.  I've had this happen on every 
dual interface system that doesn't use some sort of jump start CD.

Regards,
Rob

"Mark Arnold [MVP]" wrote:

> I don't "do" anything fancy to the boxes I connect to iSCSI it's a
> Windows problem rather than Exchange. Focussing on that then, what's
> the binding order on the cards? The user card should (obviously) be at
> the top.
>

date: Mon, 17 Mar 2008 18:56:00 -0700 author: Rob Gault alias

Re: 2nd nic breaks Activesync / OMA

You and me both. I think it's crap but I don't have a suggestion on
what logic the OS should use when deciding what card to put at the top
although something along the lines of "if this card hasn't got F&P
sharing for MS clients blah blah then it should be below one that has
in the binding order"

date: Tue, 18 Mar 2008 08:19:40 -0400 author: Mark Arnold [MVP]

RE: 2nd nic breaks Activesync / OMA

Just ran into same issue, boy this is a big one.  Have this beautiful SAN and 
we cannot move our Exchange stores over to it without giving up Activesync.

Cannot believe this is not solved as of yet....are we the only ones doing 
SAN and Activesync?

"Rob Gault" wrote:

> When I enable a second NIC on my exchange server activesync no longer works.
> 
> Accessing https://ExchangeServer/oma with IE produces the error "A system 
> error has occurred while processing your request. Please try again. If the 
> problem persists, contact your administrator." 
> 
> Disabling the 2nd nic corrects the problem, activesync works etc.
> 
> I need the 2nd nic for iSCSI storage.  If anyone has a solution I would 
> greatly appreciate your help.
> 
> Regards

date: Wed, 2 Apr 2008 13:18:01 -0700 author: Jim Mulholland Jim