Intermittent Connection Errors

[Guest Mike Reagan]

I am not sure if this is the correct newsgroup to post in. Recently (last 2

months or so) we started seeing errors in our web apps on our production web

server. At first glance, they seem SQL Server like SQL Server connection

errors with ASP.NET 2.0.

 

Example of error:

A transport-level error has occurred when receiving results from the server.

(provider: TCP Provider, error: 0 - An established connection was aborted by

the software in your host machine.)

 

A reboot seemed to fix the problem, but only for a while. Then the problem

became more frequent. I thought it was .NET specific. But then I noticed some

ASP 3 apps were having problems too, and was getting "General network error"

when connecting to the database.

 

And then I thought it must be a problem with IIS. But then, a console app

that runs on the server that is built with VB6 was returning connection

errors on sending emails through SMTP and now .NET applications are

expeiriencing SocketExceptions as well when trying to send emails.

 

I have to point out that the problem does not come up every single time you

load a page or run a program on the server. It is very frequently

intermittant.

 

All of these apps are running on other developement servers just fine, and I

even stress tested them to see if that was the problem, but no matter what,

the problem does not appear to effect the other servers.

 

This is a standard Windows Server 2003 with SP2 and is current on all

updates. I am wondering if there is some problem with the network stack on

the server not working correctly since it seems to be affecting nearly every

program that connects to another service on another box.

 

Does anyone have any ideas or advice about where to go from here.

 

Thanks in advance.

[Guest Mathieu CHATEAU]

Re: Intermittent Connection Errors

 

Hello,

 

did you install the SQL client on the web server ? If so, you must exactly

have the same sql service pack as the SQL Server.

 

W2K3 SP2 makes big changes on the network stack.

 

You may experience network-related problems after you install Windows Server

2003 SP2 or the Scalable Networking Pack

http://support.microsoft.com/kb/936594

=>can you apply the fix of this KB ?

 

--

Cordialement,

Mathieu CHATEAU

English blog: http://lordoftheping.blogspot.com

French blog: http://www.lotp.fr

 

 

"Mike Reagan" <MikeReagan@discussions.microsoft.com> wrote in message

news:2E8A3244-7D52-4BE2-B262-1EB0D964541B@microsoft.com...

>I am not sure if this is the correct newsgroup to post in. Recently (last 2

> months or so) we started seeing errors in our web apps on our production

> web

> server. At first glance, they seem SQL Server like SQL Server connection

> errors with ASP.NET 2.0.

>

> Example of error:

> A transport-level error has occurred when receiving results from the

> server.

> (provider: TCP Provider, error: 0 - An established connection was aborted

> by

> the software in your host machine.)

>

> A reboot seemed to fix the problem, but only for a while. Then the problem

> became more frequent. I thought it was .NET specific. But then I noticed

> some

> ASP 3 apps were having problems too, and was getting "General network

> error"

> when connecting to the database.

>

> And then I thought it must be a problem with IIS. But then, a console app

> that runs on the server that is built with VB6 was returning connection

> errors on sending emails through SMTP and now .NET applications are

> expeiriencing SocketExceptions as well when trying to send emails.

>

> I have to point out that the problem does not come up every single time

> you

> load a page or run a program on the server. It is very frequently

> intermittant.

>

> All of these apps are running on other developement servers just fine, and

> I

> even stress tested them to see if that was the problem, but no matter

> what,

> the problem does not appear to effect the other servers.

>

> This is a standard Windows Server 2003 with SP2 and is current on all

> updates. I am wondering if there is some problem with the network stack on

> the server not working correctly since it seems to be affecting nearly

> every

> program that connects to another service on another box.

>

> Does anyone have any ideas or advice about where to go from here.

>

> Thanks in advance.

>

>

>

>