This is to inform that Comodo Leaktest download is failing. The file http://download.comodo.com/securitytests/CLT.zip seems to have been removed from the server. Please fix it.
Apparently a little utrapassado element, but even legitimate leaktests programs, can indicate where the errors lie.
In case the sandbox can give false results, but in some cases you can search or search if the results really reflect reality. Here it was possible to identify a failure related to the initialization of bank plugins, for example. Here I could see the file "guardian" or banking plugin if it starts without being properly started in the sandbox
NOTE: For CIS the files are considered unknown