Network Access Using Named Pipes
Oct 12, 2007
I cannot access my SQL Server 2005 Express using Named Pipes.
I have installed SQL Express 2005 on a Windows 2000 server.
I have enabled Named Pipes and TCIP.
I can connect from an XP Pro machine using MSSMS using both Windows Authentication and SQL Authetication.
I cannot connect to Named Pipes using a Windows 2003 server through IIS connect string. I have tried many variations on the connect string.
The connect string works with another SQL Server 2000 database.
var strConnection = "Provider=sqloledb;Data Source=XXX;Initial Catalog=XXX;User Id=XXX;Password=XXX;Network Library=DBMSSOCN"
or
var strConnection = "Provider=SQLOLEDB.1;User ID=XXX;Password=XXX;Data Source=SQLEXPRESS;Location=XXX;Initial Catalog=XXX"
I cannot connect using the command line from the remote computer. But it does work from the local machine.
osql /S\XXXpipeMSSQL$SQLEXPRESSsqlquery /E
[DBNETLIB]SQL Server does not exist or access denied.
[DBNETLIB]ConnectionOpen (Connect()).
Does SQL Express have named pipes disabled for remote access? Can it be turned on? I have enabled it in the Surface Area Configuration.
Please help. I have spent the whole week researching this and trying to get it to work.
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Apr 27, 2007
I have a quick question which I am hoping someone can answer for me.
In many of the guidelines / checklists to secuing MS SQL Server 2000 (particularly SANS and CIS) , it says that all unused network libaries should be disabled.
Can anyone please tell me what the security risk is if Named Pipes is enabled and the default path (is that what it is called?) of \.pipesqlquery is set, as I believe is the default setting upon installation.
All I can seem to find is guidance on what to do (disable unused network libraries) and not why you would want to do it.
Thanks for help
(Sorry if it is a dumb questions)
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Dec 20, 2006
Hi,
I have windows 2003 (SP1) server with sql server 2000 (SP3) .
In the server network utility, I have enables only TCP/IP protocol and disabled the Named pipe protocol.
Now if I try to connect to the sql server from a remote machine, I get the message saying "unable to connect either server does not exist or ......".
I have configured the firewall to allow communication on TCP port 1433. It didn't help. I tried to disable the firewall completely, still it didn't work.
It works only if I enable Named pipe in the server's server network utility.
- Abhijit
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Sep 21, 2006
Hello there,
I recently started having trouble with my local SQL Server 8.0 database server. When I try to start it with Enterprise Manager I get the following error:
An error 5 - (Access is denied) occured while performing this service operation on the MSSQLServer service.
Nothing showed up in the SQL Server error logs. If I try to connect to it using the SQL Server Management Studio that came with SQL Server 2005 I get the following (slightly more informative) message:
Cannot connect to (local) ... (provider: Named Pipes Provider, error 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2)
I'm not sure which log to look at in the MSSQL folders: MSSQL.1, MSSQL.2 or MSSQL.3.
Furthermore, if I manually start the MSSQLSERVER service, then I can connect just fine with the SQL Server 2005 Management Studio but still get the weird error message with SQL Server 8.0 Enterprise Manager.
Any ideas?
Thanks
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Oct 20, 1999
I am trying to run a sql script that was written by a third party to set up the tables and stored procedures of a 6.5 database. The script crashes
about half way through. The error looks like this...
The vendor said that I needed to change the client configuration to tcp/ip sockets instead of the named pipes that I was using. When I change
this setting I can no longer connect to the server through enterprise manager. The error message is...
I am not sure if the db-library is not set up correctly for the server or why it will not connect through the tcp/ip socket. I ran the ping command
from the command line and it returns a valid connection to the server. This doesn't make a lot of sense to me.
Does anyone have any experience with this problem or suggestions of something to try to fix this problem. Any ideas would be great. Thanks.
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Oct 20, 1999
Sorry I forgot to attach the error messages.
This is the message when the script crashes...
DB-Library: Unexpected EOF from SQL Server. Connection broken.
Net-Library error 109: ConnectionCheckForData (PeekNamedPipe()).
DB-Library Process Dead - Connection Broken
This is the message when I try to connect to the server using tcp/ip sockets...
A connection could not be established to SERVERNAME - [DB-Library]Unable to connect SQL Server is unavailable or does not
exist. General network error.
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Aug 9, 2003
Hi Everybody,
Can anyone tell me what are named pipes? and what is a TCP/IP net library? Do these libraries work together or only one can be used at a time?
Thanx in advance.
Regards,
Samir.
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Feb 11, 2004
Can anyone please tell me why i have one SQL 2000 server that is only accepting Named Pipes connections from clients? In the Server Network Configuration Utility both protocols are enabled, although Named Pipes in first and i cannot change the ordering.
TIA:confused:
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Apr 20, 2005
All - I have 2 SQL2K clusters, both have local applications and replication. The first cluster uses TCP/IP for all its connections when looking at SQL Management processes. The second is still using named pipes for all connections. How do I set or configure the second cluster to use TCP/IP on local connections and replication? Thanks.
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May 23, 2001
In your experience and all things being equal, is connectivity using named pipes faster, slower, or the same as tcp/ip?
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Dec 13, 2004
How would one go about adjusting the default connection to the SQL Server on the client side, using either Named Pipes or TCP as the default?
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Apr 30, 2008
I'm working on an insert into a database and I barrowed this code stright from Microsoft, changing the info I need. I keep getting an error "An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)" This is the same connection string that I use for querying the database without a problem. Anyone have any ideas?
Jeff
SqlConnection con = new SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=software.mdf;Integrated Security=True;User Instance=True;");SqlCommand cmd = new SqlCommand("INSERT INTO download_table (username, computer_name, computer type, install type, date, email, agree, title) VALUES (@username, @computer_name, @comptype, @installtype, @date, @email, @agree, @title)", con);cmd.Parameters.Add(new SqlParameter("@username", SqlDbType.VarChar, 50));cmd.Parameters["@username"].Value = username;cmd.Parameters.Add(new SqlParameter("@computer_name", SqlDbType.VarChar, 50));cmd.Parameters["@computer_name"].Value = computer_name;cmd.Parameters.Add(new SqlParameter("@comptype", SqlDbType.VarChar, 50));cmd.Parameters["@comptype"].Value = comptype;cmd.Parameters.Add(new SqlParameter("@installtype", SqlDbType.VarChar, 50));cmd.Parameters["@installtype"].Value = installtype;cmd.Parameters.Add(new SqlParameter("@date", SqlDbType.DateTime, 50));cmd.Parameters["@date"].Value = date;cmd.Parameters.Add(new SqlParameter("@email", SqlDbType.VarChar, 50));cmd.Parameters["@email"].Value = email;cmd.Parameters.Add(new SqlParameter("@agree", SqlDbType.VarChar, 50));cmd.Parameters["@agree"].Value = agree;cmd.Parameters.Add(new SqlParameter("@title", SqlDbType.VarChar, 50));cmd.Parameters["@title"].Value = title;cmd.Connection.Open(); <--- This is where I get the above errortry{cmd.ExecuteNonQuery();}catch (SqlException ex){}cmd.Connection.Close();
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May 21, 2001
Hi,
How do I find out on which path is the SQl server lisytening to on named pipes when I look at the registry?
Thanks,
Ganesh
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Jun 28, 2001
Can anybody help?
I have recently got any error -
Microsoft OLE DB Provider for ODBC Drivers error '80004005'
[Microsoft][ODBC SQL Server Driver][Named Pipes]Connection Broken
/
Does anybody know how to resolve or point me in the right direction.....?
Thanks
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Feb 17, 2004
I have a SQLSERVER INSTANCE A, to which I want to connect from a Client as TEST, using the SQL Server alias functionality under the client network utility program. The alias is working fine with the TCPIP connection but it fails when I try to connect to the SQL Server using the named pipes. In my case I'm trying to connect to a named instance of SQL Server 2000 using the following pipe: \servernamepipemssql$instancenamesqlquery
Any help?
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Aug 14, 2007
i have to admit I am not that familiar with named pipes, but i do have an issue with them that I would like to understand a bit better.
I installed the SQL 2005 express version on a machine and using a express manager i tried connecting to the instance i just installed. However i was getting an error message referencing the NAMED PIPES. after hours of trying to figure out what the problem was i found that using the SQL Server COnfiguration Manager, under the SQL Server 2005 Network Configuration there is a node called Protocols for SQLEXPRESS. there are four protocols, one of which is the NAMED PIPES. Under the properties for this protocol there is the PIPE NAME which is what i had to change to "\.pipesqlquery". the default was longer and if i remember it correctly it was something like "\.pipeMSSQLSERVEREXPRESSsqlquery".
Once i made that change i was able to connect. Can somebody please explain to me what I have done (i can't find the article that lead me to this) and if there is any way to make this change in some sort of a script or something.
reason being is that I have an VB app that deploys the SQL 2005 express version as well and i would like to eliminate this step from the user to configure before using the app.
many thanx
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Mar 14, 2008
We have migrated some users over to a new domain and when using SQL Management Studio, they can only connect using Named Pipes. Why?
Canada DBA
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Jul 23, 2005
In the process of doing some routine monitoring/clean-up we'vediscovered that several (many?) users are apparently set to access ourSQL Server 2000 database instances via the Named Pipes protocol. Inreadings and recommendations we've decided that our WAN would be bestserved if we use the less "chatty" TCP/IP.As such we've also decided to try to enforce this decision to useTCP/IP exclusively using the domain login script used by all of ourend-users.Question: does anyone know what registry entries are created/used toindicate that TCP/IP is enabled and is the default protocol for SQLServer 2000? Our environment is: XP Pro SP2 and SQL Server 2000(typically SP3).TIAGlenn - newbie DBA
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Dec 4, 2007
HI,
I am getting an error message when I have installed SQL server 2005 and trying to access it through my component. The error message is An error occurred while establishing a connection to the server. When connecting to the SQL Server 2005, this failure may be caused by the fact that under the default settings SQL server does not allow remote connections (Named pipes provider)??
I would be obliged if anyone can help me in this regard.
Regards,
Nitin Bhansali
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Apr 4, 2007
Hi!
I tryed to make an silent mode install for SQL express edition, for example:
start/ wait setup.exe /qn ADDLOCAL=ALL SECURITYMODE=SQL SAPWD=***** SQLBROWSERAUTOSTART=1 DISABLENETWORKPROTOCOLS=0
When i run it from a .bat file it's ok but i'm using this command in a .ini file in some apllication.
It doesn't install all the SQL, i mean in services it appears only SQL Server VSS Writer.
I also get the error Named Pipes Provider. The application that i want to install gets installed but can't connect to server.
I really need some help.
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Apr 4, 2007
Hi,
I'm using bcp and sqlcmd against SQL 2005 engine. They both work fine for long periods of time, but every few days they stop working with an error something like this:
A connection could not be establed - actively refused - this might be because remote connections are not allowed or the named pipes protocol is not enabled.
The thing is, remote connections ARE allowed, and named pipes ARE enabled. I have to recycle the SQL serverice to make it start working again.
Here are the commands that stop working.
sqlcmd -Ulowcostbuy -Plcb01 -S127.0.0.1 -id:homeWeBuysql runcate_bid_request.sql
bcp low_cost_buy..bid_request in d:homeWeBuyuploadunzipped
equest.dat -S127.0.0.1 -Ulowcostbuy -Plcb01 -fd:homeWeBuyformatsid_request_in.fmt -ed:homeWeBuylogid_request_in.err
Another note: sql is listening on port 1737, not the standard 1433 (or whatever it is).
Can anyone please help!? This is a very high profile application; having it die every few days is NOT an option!!
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Dec 27, 2006
Hi all,
I've got a little problem.
I'm working on a ASP.NET project. The applications has 4-layers. When I look in the Data Access Layer and test the typed dataset, then the "Preview Data" works fine. I see the right records from SQL Server 2005.
But when I run the app (default.aspx) in debug-mode, then the system gives the following error:
"An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"
Please help.....
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Sep 4, 2001
We would like to use dns entries (CNAME) to create transparency between server infrastructure and logical servernames. So we could physically move databases onto another server and changing the dns entry without reconfiguring all client applications.
Old situation:
- Financeapplication connects to SERVERA (wins) through a .ini file.
New situation:
- Financeapplication connects to finserver.mydomain.be (CNAME)
- finserver.mydomain.be points to servera.mydomain.be (A record) in dns
- servera.mydomain.be is refering to the ip address of SERVERA
We tried to connect and got a 'get_overlapped_results' (clientside) when using a dns name in combination with named pipes. At the server we are getting this error:
Error: 17832, Severity: 18, State: 8
2001-08-24 13:10:16.64 ods Connection opened but invalid login packet(s) sent. Connection closed.
Connecting to the wins name of the server does work! Connecting to the dns name also works when using tcp sockets instead of named pipes.
Though, on some client pc's this does work with named pipes too, but we couldn't find any regularity or logic when it works or when it doesn't (service packs, mdac versions, NT/95/98/2000, ... etc).
We also noticed that integrated security works with tcp sockets when using dns names, but it doesn't when using wins names.
Does anyone have a clue?
Kurt.
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Feb 23, 1999
I have a question. When my SQL server was originally configured, it was only setup to use named pipes. Now I am needing to setup a P&M server (through Site Server 3.0), but I must have my SQL server to accept tcp/ip network connections. I don't know how to enable named pipes & tcp/ip. Any help would be greatly appreciated.
Steve Robitzsch
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Sep 25, 1998
We are having some problems using TCP/IP connection and was wondering what the benefits are to using this versus Named Pipes. The company that provides our software stated that this would improve performance but I do not see it and I am getting a lot of errors connecting. This also locks many of the users and I end up having to stop and start the database to clear the locks because there are so many. Would it be better to place the clients on Multi-protocol. It seems more powerful to use but I wanted to get some feedback from some people that may have dealt with this issue before.
Thanks,
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May 15, 2006
Hi all,
little connectivity problem, I hope this hasn't been asked before, I've tried searching and haven't found much sign of it.
We have an app which runs on sales reps laptops using MSDE (or in this particular case SQL 7 Desktop Edition) and uses merge replication to send up orders, pull down products etc. All worked fine untill we set it up for one particular customer who wanted to use their existing SQL 7 install with it and a VPN connection for replication.
The problem is that with the VPN connected nothing (the app, the merge dll or even enterprise manager) could connect to the local instance (but can see the main server across the VPN). It seems to be some kind of funny routing issue whereby the VPN software sends local traffic off across the VPN which has no idea what to do with it. Using the Client Network Utility I've been able to setup an alias for the local machine forcing it to use named pipes, which worked brilliantly allowing access when connected to the VPN and allowing replication to work. Unfortunatly with this enabled the problem now occurs when the laptop is disconnected, nothing can connect to the local instance.
I'm kind of a newbie wrt to managing SQL server, can anyone suggest anything on how I should be setting this up ?
Thanks in advance,
Steve.
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Aug 9, 2007
For SRS??? If so, what's the work around?
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Jun 14, 2007
I see Named Pipes disabled by default in SQL 2005. Is this for any specific reasons?
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Dec 21, 2005
I keep getting errors. It all started when I enabled named pipes on my SQL Server 2005 server. Ever since then I've had connection problems up the butt.
Most recently I got this error so does this mean that SQL Server is still trying to use named pipes even if I only have TCP/IP enabled in SQL Server Configuration Manager?
Error:
TITLE: Connect to Server
------------------------------
Cannot connect to BG-SQL2005.
------------------------------
ADDITIONAL INFORMATION:
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=2&LinkId=20476
------------------------------
BUTTONS:
OK
------------------------------
I get this when I try to connect to my DB period and I know the users are setup correctly, even tried both Windows Authentification and SQL authentification, no luck. It was working happily for a few days it seemed before I enabled named pipes in the SQL Server Configuration Manager.
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Jan 2, 2008
Hi All,
I inherited a web server (I'll refer to as WS1) that is running MS 2003 SP2 with Microsoft SQL Web Data Administrator (I have no clue what version of SQL Server this is? Any idea on how to find it is greatly appreciated, but not necessarily what I'm after in this post). There is a default website (website.com) which resides on the C: drive. This was built with asp. On the default.asp page there is a link to an administrative portion (admin.com). This was built with DotNetNuke (.aspx) and resides on the D: drive. All works fine.
I recently was tasked to set up a new web server (I'll refer to as WS2) with MS 2003 SP2 and SQL Server 2005. I imported the database and websites from WS1 that I needed. Both websites are now on the C: drive. Since WS1 is currently live, I can't use website.com and must use the IP address. No problem...the default website website.com opens fine. I also changed how I call the admin.com site. Since I can't open it as href=admin.com and because I already have a default website, I tried creating a virtual directory under the default site to open it. But I'm getting the following error:
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Looking through the posts on the web, I'm not sure what to do. I originally thought the problem might be with my web.config. But now I'm not sure. I'm not even close to being a network admin or a dba so keep that in mind when you respond. Here's what I've checked:
1) Surface Area Configuration for Services and Connections >> Remote Connections: Local and remote connections is selected with the "Using both TCP/IP and named pipes" option selected.
2) Computer Management >> SQL Server Configuration Manager >> SQL Server 2005 Network Configuration >> Protocols for MYWEBSITE: TCP/IP & Named Pipes are enabled
I can connect to the database via SQL Server Management Studio, so I know the database is up and running.
Also, the original web.config file for the admin.com website looks something like this:
<add key="WebDSN" value="Server=(local);Database=Database1;uid=userid1;pwd=password1;" />
<add key="SiteSqlServer" value="Server=(local);Database=Database2;uid=userid2;pwd=password2;" />
Hope I haven't confused you, but I probably have. Any help is greatly appreciated.
Many Thanks,
Mark
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Jan 3, 2008
Hi All,
I inherited a web server (I'll refer to as WS1) that is running MS 2003 SP2 with Microsoft SQL Web Data Administrator (I have no clue what version of SQL Server this is? Any idea on how to find it is greatly appreciated, but not necessarily what I'm after in this post). There is a default website (website.com) which resides on the C: drive. This was built with asp. On the default.asp page there is a link to an administrative portion (admin.com). This was built with DotNetNuke (.aspx) and resides on the D: drive. All works fine.
I recently was tasked to set up a new web server (I'll refer to as WS2) with MS 2003 SP2 and SQL Server 2005. I imported the database and websites from WS1 that I needed. Both websites are now on the C: drive. Since WS1 is currently live, I can't use website.com and must use the IP address. No problem...the default website website.com opens fine. I also changed how I call the admin.com site. Since I can't open it as href=admin.com and because I already have a default website, I tried creating a virtual directory under the default site to open it. But I'm getting the following error:
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Looking through the posts on the web, I'm not sure what to do. I originally thought the problem might be with my web.config. But now I'm not sure. I'm not even close to being a network admin or a dba so keep that in mind when you respond. Here's what I've checked:
1) Surface Area Configuration for Services and Connections >> Remote Connections: Local and remote connections is selected with the "Using both TCP/IP and named pipes" option selected.
2) Computer Management >> SQL Server Configuration Manager >> SQL Server 2005 Network Configuration >> Protocols for MYWEBSITE: TCP/IP & Named Pipes are enabled
I can connect to the database via SQL Server Management Studio, so I know the database is up and running.
Also, the original web.config file for the admin.com website looks something like this:
<add key="WebDSN" value="Server=(local);Database=Database1;uid=userid1;pwd=password1;" />
<add key="SiteSqlServer" value="Server=(local);Database=Database2;uid=userid2;pwd=password2;" />
Hope I haven't confused you, but I probably have. Any help is greatly appreciated.
Many Thanks,
Mark
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Oct 3, 2007
I have an app that I've written in .NET 2.0 using SQL 2000 as the back end. It works fine in development but when I move it out to our QA server I get the following error. An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) One of the odd things I notice is that the error message references SQL Server 2005 when that's not installed on our QA box, only SQL 2000 is on it. I've checked the server and TCP/IP and Named Pipes are enabled. Here is my connection string<add name="myConnectionString" connectionString="Data Source=(local);Integrated Security=false;Initial Catalog=TestDatabase;User Id=myUsername;Password=myPassword;" providerName="System.Data.SqlClient"/>There's at least one other .NET 2.0 application running on this server that accesses the database so I know that it can work! However, have access to the source code for that application so it's not any help with my troubleshooting. Any thoughts or ideas?
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Dec 9, 2007
Hi,
I have been getting this error for about 6 hours now. I have read every article from google about it and absolutely none of the solutions work for me.
I am running Windows XP Home Edition
I downloaded and installed Visual Studio Web Developer Express about a week ago.
I downloaded SQL Server Express 2005 yesterday.
It installed fine.
I got my first error trying to add New Item->Sql Server Database only to find out the default instance SQLExpress was not working and i was running a different instance.
Anyway, I am trying to connect to sql server with the below code:
SqlConnection myConnection = new SqlConnection("server=mycomp/mssqlserver;database=mydb;Trusted_Connection=yes");
SqlCommand myCommand = new SqlCommand("select category, title, article from articles where id=15");// + article + ");", myConnection);
myConnection.Open();
Which give me the below error:
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)Source Error:
Line 30: SqlCommand myCommand = new SqlCommand("select category, title, article from articles where id=15");// + article + ");", myConnection);
Line 31:
Line 32: myConnection.Open();
Line 33:
Line 34:
I have followed all the instructions online like enabling 445 firewall stuff, making sure i accept local and remote connection, enabling TCP/IP Named pipes and heaps of protocols ect but nothing works.
I am about to uninstall sql server and .net and call it quits.
This stupid server is too hard to configure.
If anyone could help me get it running it would be gretly appreciated however, this question seems to be asked all over the net and i have read gazzilions of threads with all kinds of answers but nothing works.
Thanks
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