“The relay could not be contacted”
From version 7.0 onward, Lansweeper includes a second scanning agent called LsAgent. LsAgent is a cross-platform, lightweight program that you
Troubleshooting issues with your installation
Emails not imported as tickets into the help desk
From version 6.0 onward, the Lansweeper software includes a help desk and ticketing system. Tickets can be created in several
Lansweeper installer not launching
If you've downloaded the latest Lansweeper installer from our download page and the executable won't open when launched, the file
“A potentially dangerous Request.Form value was detected from the client”
Both the scanning service and web console have a configuration file, which stores information on which Lansweeper database to connect
“The version of this file is not compatible with the version of Windows you’re running”
When you've downloaded the Lansweeper executable and run it to perform a Lansweeper installation, you may encounter the error seen
File and image upload errors and SLA calculation issues
The Lansweeper web console can either be installed under the IIS Express or the IIS web server. From Lansweeper version
Automatically redirected to login screen
The Lansweeper software consists of 3 components: a database, a scanning service and a web console. Web console, scanning service
Password hash errors
Scanning and other credentials submitted in the Lansweeper web console have always been encrypted prior to being added to the
“Invalid object name tsysWebRoles”
The databases of 5.x versions of Lansweeper contain a table called tsysWebRoles, which stores information on your website access configuration.
Locked out of the web console
If you perform a new installation of Lansweeper 6.0 or a more recent Lansweeper release, you are presented with a
“Scanserver down” or “unavailable” or scanning server not listed in web console
When you install Lansweeper, a service called Lansweeper Server is added to Windows Services on the machine hosting your installation.
“Update in progress”
It is recommended that you update your Lansweeper installation on a regular basis, to ensure that you have the latest
“ExecuteReader: CommandText property has not been initialized”
If you install the Lansweeper database under SQL Server, any built-in and custom reports seen in the Reports tab of
“A network-related or instance-specific error occurred”
Lansweeper data, reports and settings are stored in a database, which is hosted in either SQL Compact or SQL Server.
“Login failed for user lansweeperuser”
Lansweeper data, reports and settings are stored in a database, which is hosted in either SQL Compact or SQL Server.
Putting the scanning service in debug mode
To scan your network, trigger deployments and send mails, Lansweeper uses a service called Lansweeper Server. This service writes its
Event ID 5605 generated during scanning
When you've installed Lansweeper and start scanning your network, you may start seeing entries like the ones below in the
“Could not load type System.ServiceModel.Activation. HttpModule”
If ASP.NET is not properly enabled (anymore) on the server hosting your Lansweeper web console, your console may become inaccessible
Clearing tables to free up space and improve performance
In general, the cleanup options found in the web console under Configuration\Server Options should keep the size of your Lansweeper
“The interface is unknown”
Listed below are two possible causes of (and solutions for) the following error, which may pop up on the Lansweeper
Issue with self-replicating dashboard tabs and unusual tab names
If you have Netsparker, Rapid7 or other vulnerability management software running in your network, you may start seeing randomly generated
“DCOM was unable to communicate with the computer”
When you’ve installed Lansweeper and start scanning your network, you may start seeing entries like the one below in your
Repairing a corrupt SQL Compact database
Certain operations, like manipulating your database file while services are connected to it, can lead to corruption of your SQL
Reinstalling the web console
If your Lansweeper web console stops working for some reason or won’t load at all, the first thing you should
