It is likely the problem is with the account the reporting server is running under (OCTETHP\Support). You may need to add this user to the web user group (IIS_WPG depending on your OS version). If that doesn't work, you can set the user to be a local administrator and work the permissions back from there.
If you want to run the reporting services from another account you'd want to follow these steps:
- Open IIS Manager
- Under websites locate the SSRS website (/Reports in your case)
- In basic properties check the App Pool the site is running under
- Go to the App Pools section of IIS and open the advanced properties
- Setup the user that the App Pool runs under
You'll need to make sure the user is assigned to the web user group, and has permissions to access the folder that the website points to.