A network-related or instance-specific error occurred while establishing a connection to SQL Server.

[Pollak]

Last Friday I installed a fresh copy Lansweeper on a new server. Everything was working fine until this mornig. The web site is returning the following error along with some other stuff.

A network-related or instance-specific error occurred while establishing a connection to SQL Server.

I can access the Lansweeper Configuration Utility and all seems well there.


Please advise,
Niles

[Susan_A · Accepted solution]

FYI for everyone: there is a detailed knowledge base article now on how to resolve this error. You can find it here.

[Pollak]

Issue resolved. The web.config file was modified to prevent user from accessing the web site. Forgot to change the DBSource from the old server to the new server.


Thank you,
Niles

[Pollak]

Everything is on one server and nothing has changed that I can see. since last Friday. Lansweeper 4.0.0.36

Please advise,
Niles

[Hemoco]

Is everything installed on one server?
Was anything changed after the installation?
Which version do you have installed?