At installation time, PINpoint attempts to create a local group called PINpointManagers and makes the current user (the installer's) account a member of this group.

The PINpoint installation automatically grants access rights to the local PINpointManagers group. This can be easily reconfigured through the applications's Web.config file (search for "authorization").

Please check if the group PINpointManagers was created on the local machine and the user you are trying to use is a member of it.