Problem resolved by moving the Lansweeper web console from UltiDev to a different web server. There are known bugs in UltiDev, so we no longer recommend using this web server. (IIS Express is now the default for new Lansweeper installations.)
Please contact us at support@lansweeper.com and provide us with the following: - For easy reference, a link to this forum thread. - Screenshot of what you see when you try to access the web console. - The Errorlog.txt file found in Program Files (x86)\Lansweeper\Service on your Lansweeper server.