I get the error:
Object reference not set to an instance of an object
while I am installing the SQL Server 2017 database engine service.
In previous tabs, only the windows firewall gives warning, but I already have made rule for port 1433. In SSMS, when I try to connect with database engine, it causes a login failed error (Error 18456, state:1).
I have already tried reinstalling and also tried to use .net framework repair tool, but that didn't help.
Also I found that interesting thing that I do not have problem with connecting to analyses services in SSMS.
Related
my tfs console stop working giving error. When i open the tfs administrator console.it works fine a week ago but suddenly start giving this error and my all developers are facing this error.
TF246017: Team Foundation Server could not connect to the database. Verify that the instance is specified correctly, that the server that is hosting the database is operational, and that network problems are not blocking communication with the server.
I have check the databases for the tfs they are working fine means they accept queries and showing result.
also i have checked through command DBCC CHECKDB command and giving zero errors.
kindly help me for this error I'm new to TFS
TFS 2015 installed on Windows server 2012 R2
I am new to Team Foundation server and when I am configuring TFS for SQL Server, I am getting below error where TFS is not able to connect to the SQL Server instance where as when I connect to SQL Server it is connecting successfully. Both SQL Server and TFS are on the same server machine. Please advise
Error while clicking on Test Link
According to the error info, you need to make sure the TFS service accounts(which you started the TFS Installer) have permissions on the DB server.
Add the account in the list of logins in SQL Server side and retry
the previous operation.
Moreover, if Windows Firewall is on the TFS box, switch it off during the installation and try again. After finish the installation reopen the firewall.
For more details you could take a look at below similar issue:
Errors during TFS 2013 install–and how I worked past them
Workaround Error TF255049: Punching a hole through Windows
Firewall
I need help with SQL server in visual studio. I can't seem to connect my visual studio with internal SQL server. I had created a database with visual studio earlier and it was working fine but now i'm getting an error saying:
The attempt to attach to the database failed with the following
information: A network-related or instance-specific error occurred
while establishing a connection to SQL Server. The server was not
found or was not accessible. Verify that the instance name is correct
and that SQL Server is configured to allow remote connections.
(provider: SQL Network Interfaces, error: 50 - Local Database Runtime
error occurred. Cannot create an automatic instance. See the Windows
Application event log for error details.
I have tried to create a new database file in a new project but then i get the error:
A network related or instance specific error occurred while
establishing a connection. The server was not found or was not
accessible. (Provider:Named Pipes Provider, error:40- could not open a
connection to SQL server.
I have tried different things but can't seem to get the hang of the problem. I reinstalled visual studio too but that didn't work either. what can i do to get rid of this error and get my database back online?
If you are running Visual Studio on your local machine, you have not any problem with firewalls and enabling of TCP/IP.
Try this four solutions may fix your problem:
SQL Server Express LocalDB add-on, get it from this link.
Make sure that your SQL service is running.
Use SQL Server Authentication.
Make sure you have typed .\sqlexpress in Server name in Add Connection window. You should use a backslash \ as the separator, not a forward slash.
I installed SQL server 2012 developer addition.
My windows is working on Parallel Access installed on MAC.
When I tried opening SQL server, It initiated a call to connect to server. And when I clicked on connect it gave me error.
I've never installed SQL server 2012 in my personal PC. WHen I was installing I chose Windows authentication mode and user ROMANCH9326 came out automatically.
Please help me, I'm clueless about this problem.
TITLE: Connect to Server
Cannot connect to ROMANCH9326.
ADDITIONAL INFORMATION:
Login failed for user 'ROMANCH9326\romanch'. (Microsoft SQL Server, Error: 18456)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476
On Start > Search type "sql configuration"
Open SQL Configuration Manager
SQL Server Network Configuration >Protocols for [SQLINSTANCENAME]
Check if Named Pipes is enabled, enable it if not.
Restart your SQL Server Instance.
Well This is a pretty silly solution but when I tried repair function on SQL server it said that my Database Engine libraries were not installed properly somehow.
So I reinstalled the software and now it worked just fine. I was able to log in.
Thanks :)
I have a problem connection to a SQL Server 2012 instance running on Windows Server 2012. I have a .NET 4.5 windows forms application installed on a client machine running Windows 7. The error I get is this:
A connection was successfully established with the server, but then an error
occurred during the pre-login handshake. (provider: SSL Provider, error: 0 -
The wait operation timed out.)
My connection string looks like this:
server=SERVERNAME;database=DATABASENAME;User Id=someuser;password=somepassword;Timeout=60;app=LabelMaker
I tried connecting to the SQL Server from the client machine using QueryExpress
and that worked! My app is 64-bit if that is of any help. I've checked every setting I can think of in SQL Server. No force encryptions are enabled on the protocols (shared memory and tcp/ip), the domain firewall is open on the server. I've tried various connection strings with all kinds of unheard off parameters, always the same result, failure.
I'm really confused about why it works with QueryExpress? My app works when connected to a remote instance of SQL SERVER Express on another machine, it also works if I run it on the SQL Server 2012 machine.
I've also tried connecting to the server from the client machine with LinqPad and this is also really weird, with the new version based on net4/4.5 (Version: 4.43.06) it fails but when I use the old version of Linqpad (2.x) based on net3.5 it works!
It seems like Panda Security is causing the problem, I ran
netsh winsock show catalog
and found a few panda entries, I then did a reset
netsh winsock reset
now my application works fine, I then rebooted the machine, ran the catalog command again,
the panda entries were back and my app is having the same problem as before.
Here are the Panda entries in the winsock catalogue: https://gist.github.com/pellehenriksson/5159883
All ideas and suggestions are appreciated.
UPDATE
Panda Security v5 is the cause of this problem, this has been confirmed by Panda support.
The root cause of the problem is explained by Alex below. The customer will do an upgrade to v6 of Panda Security, I will test again after the upgrade.
CONCLUSION
Moving to Panda Security v6.0 fixed this issue.
This seems to be a non-Microsoft related issue: Visual Studio 11 beta installation disabled my abillity to connect remote MS SQL Server but not local databases.
The ticket has been closed as external.
The only workaround available at this time on Microsoft Connect is:
Posted by Lars Joakim Nilsson on 5/4/2012 at 5:03 AM
My machine had this problem. The work around for me was to remove non-IFS LSP installed Winsock Catalog Provider. Se
http://support.microsoft.com/kb/2568167
/Lars Nilsson
The SetFileCompletionNotificationModes API causes an IO completion port not work correctly with a non-IFS LSP installed link gives the resolution:
Not specifying the FILE_SKIP_COMPLETION_PORT_ON_SUCCESS flag or
removing any non-IFS Winsock LSPs installed. Also moving from a
non-IFS LSP to Windows Filter Platform (WFP) can resolve this issue.
So, you should remove Panda Security or, as an alternative, you may try to execute netsh winsock reset as a pre-build command (although I'm not sure if this is effective without a reboot), which would let you develop/debug your application.
[UPDATE]
More information about application compatibility is given here: Application Compatibility in the .NET Framework 4.5:
Data
SQLClient
Feature
Ability to connect to a SQL Server database from managed code that
runs under the .NET Framework 4.5.
Change
The existing synchronous API code path was modified to add
asynchronous support.
Impact
The presence of non-IFS Winsock Base Service Providers (BSPs) or Layered Service Providers (LSPs) may interfere with the ability to
connect to SQL Server. For more information, see
SetFileCompletionNotificationModes API causes an IO completion port
not work correctly with a non-IFS LSP installed on the Microsoft
Support website.
I hate to say it, but restarting Visual Studio and my Microsoft SQL Server Management Studio solved this problem.