Conversion from type 'DBNull' to type 'String' is not valid

[sbartley]

when i have gone to login this morring to the web console i get the error bellow i need help

InvalidCastException: Conversion from type 'DBNull' to type 'String' is not valid.]
Microsoft.VisualBasic.CompilerServices.Conversions.ToString(Object Value) +591
ASP.state_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) +529
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +2113547
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +24
System.Web.UI.Page.Render(HtmlTextWriter writer) +26
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +22
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1896


so I reinstalled version 3.2 not i get there was an error connectioj to sql server on the main lansweeper page i have checked the name pipes in sql server all look ok

Thank you

[sbartley]

Sorry for the delay the new client worked

[sbartley]

all the pc on the network are sp3

wicked i will try that beta lsclient on monday

[Hemoco]

I've created a beta lsclient for this, you can download it at http://www.lansweeper.com/debug/lsclient.zip
Let me know if it solves the problem

[Hemoco]

Is this affected computer a windows XP SP3 computer?

[sbartley]

it did happen again .I would imagine it was ther before the last update all the pc are part of a domain and this one was domained atleast 2 monts ago . I will try removeing from the domain and redomianing that pc

[Hemoco]

Was this error also present before the last update?

Lsclient sends the domain of the computer to the service, the service stores this information, puts the computer in a waitqueue and starts scanning.
So it must be lsclient sending a blank domain.

Are these clients connected to a domain? (or anything else special)?

[sbartley]

thats wicked but the question is will it happen again next time that pc is scaned btw i found 1 pc with null in the domain feild

[Baxter26]

Yes it worked, I found one computer that had NULL. Changed it to our domain and now Lansweeper is working correctly.

Thank you very much

[Hemoco]

Can someone take a look in the table tblcomputers and search for computers with the domain field empty.