[DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or access denied.

We have a classic ASP application which runs fine on NT Server, W2K Server a
nd with SQL7.0 and SQL 2000.
However, we are having problems with IIS6.0 and Windows 2003 Server when con
necting to a second Windows 2003 Server running SQL 2000 Server. IIS6.0 and
SQL on the same server works fine.
We see intermittent connection problems resulting in:
Microsoft OLE DB Provider for SQL Server error '80004005'
[DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or
access denied.
We have tried everything we have found trawling the web and still have no id
ea what is causing it.
One ASP script in particular that simply updates a table, fails most of the
time but does VERY rarely run successfully. The same script NEVER failed un
der NT/SQL7.0 or W2K/SQL2000.
We have increased timeout settings in IIS and the ASP scripts themselves. W
e have changed the OLEDB connection to reference the SQL Server IP address i
nstead of its name but nothing tried has made any difference.
Any suggestions would be gratefully received!
Posted using Wimdows.net NntpNews Component -
Post Made from http://www.SqlJunkies.com/newsgroups Our newsgroup engine sup
ports Post Alerts, Ratings, and Searching.That error message is too generic to give specific information as to why it
is failing.
Have you checked for locking /blocking on the server?
You state that the ASP page is performing an update.
Otherwise, have you made network traces from the IIS box to the SQL Server?
What protocols are you using?
Can you reproduce the problem /error using SQL Query Analyser or only from
within IIS?
Thanks,
Kevin McDonnell
Microsoft Corporation
This posting is provided AS IS with no warranties, and confers no rights.|||I have this EXACT same problem. My ASP app works fine on Win2000, SQL
Server 7 or 2000.
I get the same intermittent connection problem only when SQL Server
2000 is on a Win2k3 box. It doesn't seem to be restricted to ASP/IIS6
connections. I have problems with Access 2000 and Enterprise Mgr. as
well.
The ASP problem went away when I put SQL Server on the same box as
IIS6, but this can only be a temporary solution.
I've scoured the forums as well and I've seen this problem described
many times, but no solutions yet.
dcase
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View this thread: http://www.mcse.ms/message747245.html|||same here... I optimised the scripts to reduce the number of queries and
I've managed to reduce the number of errors, but I haven't been able to
eliminate them.
Windows 2000 used to work fine, but Windows 2003 on upgraded hardware
and with a tenth of the number of queries (or less) gives problems.
Sometimes the problem occurs when I'm trying to get a recordset, and
sometimes it occurs when I'm connecting to the SQL Server 2000 DB.
MUTU
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View this thread: http://www.mcse.ms/message747245.html|||We're having the same problems, except with WScript since moving a
server over to Windows 2003 Server. We are connecting to SQL Server 7
on a local network, specifying TCP/IP in the connection string.
The connection failure is intermittent, but is most easily reproduced
by performing a loop where connections are opened and closed. That
will pretty much guarantee that the error will occur at some random
spot in the loop. Sometimes it fails on the first try, sometimes on
the 415th try. It seems to be completely random.
We have eliminated network issues as a possibility by isolating the
servers onto their own switch and have been able to mitigate the
problem by re-using database connections rather than opening new ones.
Probably we will open a ticket with MS soon.
If anybody has info on a fix, it would help us out tremendously to
hear about it.
Pseudo code to reproduce issue...
begin loop
open database connection
execute a sql statement
close database connection
destroy connection
end loop
MUTU <MUTU.18f155@.mail.mcse.ms> wrote in message news:<MUTU.18f155@.mail.mcse.ms>...agreen">
> same here... I optimised the scripts to reduce the number of queries and
> I've managed to reduce the number of errors, but I haven't been able to
> eliminate them.
> Windows 2000 used to work fine, but Windows 2003 on upgraded hardware
> and with a tenth of the number of queries (or less) gives problems.
> Sometimes the problem occurs when I'm trying to get a recordset, and
> sometimes it occurs when I'm connecting to the SQL Server 2000 DB.|||SqlJunkies User wrote:
> *We have a classic ASP application which runs fine on NT Server, W2K
> Server and with SQL7.0 and SQL 2000.
> However, we are having problems with IIS6.0 and Windows 2003 Server
> when connecting to a second Windows 2003 Server running SQL 2000
> Server. IIS6.0 and SQL on the same server works fine.
> We see intermittent connection problems resulting in:
> Microsoft OLE DB Provider for SQL Server error '80004005'
> [DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist o
r
> access denied.
> We have tried everything we have found trawling the web and still
> have no idea what is causing it.
> One ASP script in particular that simply updates a table, fails most
> of the time but does VERY rarely run successfully. The same script
> NEVER failed under NT/SQL7.0 or W2K/SQL2000.
> We have increased timeout settings in IIS and the ASP scripts
> themselves. We have changed the OLEDB connection to reference the
> SQL Server IP address instead of its name but nothing tried has made
> any difference.
> Any suggestions would be gratefully received!
> --
> Posted using Wimdows.net NntpNews Component -
> Post Made from http://www.SqlJunkies.com/newsgroups Our newsgroup
> engine supports Post Alerts, Ratings, and Searching. *
jmrosseau
---
Posted via http://www.mcse.ms
---
View this thread: http://www.mcse.ms/message747245.html|||In case you haven't been told this already....
The intermittant failures smack strongly of TCP/IP ports being
blocked.
A named instance of a server will begin hunting for a TCP/IP Port
between 1025 to 5000. Many of these ports are typical Trojan ports.
You may have read the following:
http://support.microsoft.com/?id=287932
http://support.microsoft.com/default.aspx?kbid=814130
Lou Arnold
Ottawa Canada
On 28 Jun 2004 07:54:29 -0700, jjimenez1984@.yahoo.com (Joel) wrote:
[vbcol=seagreen]
>We're having the same problems, except with WScript since moving a
>server over to Windows 2003 Server. We are connecting to SQL Server 7
>on a local network, specifying TCP/IP in the connection string.
>The connection failure is intermittent, but is most easily reproduced
>by performing a loop where connections are opened and closed. That
>will pretty much guarantee that the error will occur at some random
>spot in the loop. Sometimes it fails on the first try, sometimes on
>the 415th try. It seems to be completely random.
>We have eliminated network issues as a possibility by isolating the
>servers onto their own switch and have been able to mitigate the
>problem by re-using database connections rather than opening new ones.
>Probably we will open a ticket with MS soon.
>If anybody has info on a fix, it would help us out tremendously to
>hear about it.
>Pseudo code to reproduce issue...
>--
>begin loop
>open database connection
>execute a sql statement
>close database connection
>destroy connection
>end loop
>--
>
>
>MUTU <MUTU.18f155@.mail.mcse.ms> wrote in message news:<MUTU.18f155@.mail.mcs
e.ms>...|||Here are our findings on this issue whereby we were attempting to update a t
able within a loop.
When we run the script, around 2 minutes into the execution, we would receiv
e the error.
Our original code where we saw this problem was as follows:
Dataconnection.open "Provider=SQLOLEDB; Data Source=sourcename; Initial Cata
log=catalogname; User Id=userid; Password=password"
SQLrep = "Select * from rep where deletedflag = 0 order by id"
Set objRSrep = Dataconnection.Execute(SQLrep)
We changed the connection and the opening of our recordsets to:
Set Dataconnection = Server.Createobject ("ADODB.Connection")
Dataconnection.ConnectionTimeout = 300
Dataconnection.open "DRIVER={SQL Server};SERVER=sourcename;DATABASE=dat
abasename;UID=userid;PWD=password"
Dataconnection.CommandTimeout = 300
Set objRSrep = Server.CreateObject("ADODB.Recordset")
objRSrep.Open SQLrep, Dataconnection, , AdLockOptimistic
We have found that this solution works but it takes about 4 times longer to
execute.
We have also found that by simply using:
Dataconnection.ConnectionTimeout = 300
Dataconnection.CommandTimeout = 300
with our original code also does the trick. At the point around 2 minutes w
here it previously failed, there is a stutter in execution of upto 19 second
s but it does manage to continue now. Well 6 successes out of 6 isn't bad w
hen previously it would hav
e been 1 success out of 20!
Hope this helps someone.
Neil H
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ports Post Alerts, Ratings, and Searching.|||Hi,
I encountered this problem recently out of sudden. The app used to work
fine and sound. However, this happens after a simple function was
deployed. Even we reverted to the previous state the app still
encounters the same problem.
All existing report generation functions which access database thru udl
are not working accordingly. However, other types of report generation
functions which access db thru crystal report are not affected. In
addition, the newly deployed function which access the db thru udl also
working fine.It's very weird.
If the database server is not accessible, why are the rest of functions
which also access db like search functions can work well.
Can somebody enlighten me?
Thanks a lots.
Rgds,
DBfaq
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Don't just participate in USENET...get rewarded for it!|||Did anyone ever find a solution for this?
I have the exact same problem, access denied on a sql connect. Worked fine i
n iis 5.
Thank you...