For the past couple of weeks at exactly 6 AM all connection to the DB are stopped. I assumed this was a network error, but the error happens when using management studio on the machine where the DB is installed, i.e. NO NETWORK it is the local SQL. The error is connection timeout.
Does anyone have any suggestions on what could cause this?
Thanks
Chris
Related
I am facing below error while connecting to the SQL Server on another server from a .NET application.
An exception has been raised that is likely due to a transient failure. If you are connecting to a SQL Azure database consider using SqlAzureExecutionStrategy. The underlying provider failed on Open. A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - An existing connection was forcibly closed by the remote host.)
SQL Server is running on Windows Server 2016 and the application is on Windows Server 2012.
Everything was fine before those security updates but after updates were installed and servers were restarted, I started getting those errors.
Any suggestions on how to resolve this?
You might want look to look at the following article at Microsoft: Applications experience "forcibly closed" TLS connection errors when connecting SQL Servers in Windows
I am running into the same issue and I applied the work around, I am still waiting for the results to confirm the solution. It started happening recently in our production environment, as this happens very randomly while connecting to hundreds of servers it is difficult to spot the issue. First we were reviewing network side for lost packets as we work between different data centers. As nothing strange came back from this investigation I stumbled upon the above article.
Update
I applied the workaround, the Group Policy on the local computer, basically followed the instructions of this Group Policy, enabled the policy, copied all cipher suits, removed the TLS_DHE* and applied it. After that restarted the server. The issue has been resolved.
I have a dotnet exe app in a server which runs in sql server. during the factory production time my application were unable to connect to db for 1 to 2 minutes and then it gains connectivity at this unresponsive time when i accessed sql server management studio, i got the below error:
Taken from the answer over here.
This usually happens when there are too many open transactions that are blocking read access to your database server. You can try restart your server which will usually solve the issue.
I am having an issue at work that is driving me mad. I am new to SQL, and am finding my legs as a system administrator (trial by fire). We have a production server that runs a SQL database and I am trying to mimic the production server in a stand-alone (test) environment. My stand-alone server is of the exact hardware and I have ghosted the production server drives on to the test server (stand-alone) as well. Everything is identical. The only difference is my test server is not in a domain. Its only in a workgroup. My setup consists of one client machine (Windows 7) and the test server running Server 2008r2(SP2)+ SQL Server 2008r2.
We have applications that connect to the database and when I run the applications (connect to the database?), I get the following error.
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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 5)
I have been researching this error for about 3 months now. I am at my wits end. I have tried all the solutions I could find. Most of the solutions I found here at this site. Enable remote connections-DONE, Firewall execptions-not necessary as I can disable the firewall since I'm on a standalone network, but I have been down that road before and it did not help. I don't think this is a network issue as I am using just a switch with the server and one client connected. I can ping back and forth between the systems.
I've tried so many other solutions that I cant even remember them all. Changed so many settings I've lost count. Thank goodness I can re-image the server back to normal if I feel I've gone to far and changed too many settings to where I can't remember what I've done.
As you can tell, I probably only make things worse the more I try to fix the error, but I have no choice. Everyone is looking at me to fix this and get the test server working, but I need some help. A huge thank you in advance to anyone that can help me solve this. It would be greatly appreciated!
I'm making a WPF application that is data driven and uses dynamic data. Now through the development process on my local computer, everything went fine, the application and my local sql server were functioning perfect.
Now what I did was transfer my database from my local machine to my server, By copying and pasting the database into the SqlServer DATA Folder on my remote server.
Now I'm able to connect to the server just fine, and i made sure to test the connection strings in Visual Studio to make sure it connects, and when i click "Test Connection" it says that the connection was successful.
But now when I try run the application, using the database that is located remotely, I get error:
Sql Exception, Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
And I find it strange because it was working fine 10 minutes ago on my local machine, so I think it must be a setting I have on my remote server or something?
Also I'm using LINQ to SQL, and I've even tried editing the LINQ to SQL Classes (dbml file) and increasing the timeout and such but still get the exact same error. I dont get what I'm doing wrong. Because the whole thing was working not too long ago on my local machine...
Any ideas what the problem is or how I could fix it?
Thanks
This error is generally due to Connection problem between server and the client. There may be a problem in network. Make Sure that database server is accessible from Application machine and no Firewalls are blocking the Connection.
We have an in-house developed VB.Net Windows Forms application that is losing users' individual connections to the SQL Server 2008 R2 database.
The bolded message below is what appears.
A transport-level error has occurred when sending the request to the server. (provider: TCP Provider, error: 0 - An existing connection was forcibly closed by the remote host.)
I have looked at many numerous articles both from Microsoft and others, but have been unable to pinpoint the issue.
Sometimes it occurs when the user has been away from the open application for a long-time; others maybe less than 20 minutes.
Any assistance would be appreciated.
This happens when the network connection is suddenly lost. It happens to me when I open my SQL Server and walk away for a long time and come back it happens.
There are a few things to consider, first check the Firewall of the server and create inbound and outbound rules for SQL server. Then if there are any antivirus in the system take a look into its behavior.