Where do I do that? Here's the actual web.config that's in the website folder, the one I've been using since before the upgrade:
<configuration><appSettings><add key="MM_CONNECTION_HANDLER_Lansweeper" value="sqlserver.htm"/><add key="MM_CONNECTION_STRING_Lansweeper" value="Persist Security Info=False;Data Source=US107VMIT01\SQLEXPRESS;Initial Catalog=Lansweeper32;User ID=lssqluser32;Password=mysecretpassword0*"/><add key="MM_CONNECTION_DATABASETYPE_Lansweeper" value="SQLServer"/><add key="MM_CONNECTION_SCHEMA_Lansweeper" value=""/><add key="MM_CONNECTION_CATALOG_Lansweeper" value=""/><add key="dateformat" value="MM/dd/yyyy"/></appSettings><system.web>
<authentication mode="Windows"/>
<identity impersonate="true" />
<authorization>
<allow roles="exact-software\AMER IT System Support,exact-software\EMEA IT System Support,exact-software\APAC IT System Support" />
<deny users="*" />
</authorization>
<compilation debug="true" strict="false" explicit="true"><assemblies><add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/><add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/><add assembly="System.Web.Extensions.Design, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/><add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/></assemblies></compilation><httpHandlers><remove verb="*" path="*.asmx"/><add verb="*" path="*.asmx" type="System.Web.Script.Services.ScriptHandlerFactory" validate="false"/><add verb="*" path="*_AppService.axd" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false"/><add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false"/></httpHandlers><httpModules><add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/></httpModules></system.web></configuration>