Network Access Control (NAC) - Frequently Asked Questions

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What am I allowed to access when quarantined?
On-campus Remediation Services like Anti-Virus Software and Internet sites such as Microsoft Windows Update Services, along with other on-campus resources you may need. These might include on-line learning or other campus website and University-provided versions of anti-virus or anti-spyware products, etc.
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Can I download operating system software security updates while quarantined by Impulse?
Yes. Any Windows Updates your system needs can be downloaded and installed while you are in quarantine mode.

The same applies to virus definitions from most of the major anti-virus providers and to anti-spyware updates from Microsoft, SpyBot and Ad-Aware.
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When I run Windows Update Services, I get a message stating that the product key used to install windows is invalid. Why?
Windows Update will fail if your Windows operating system in not properly licensed. You must have a legal copy of the operating system to connect to the University network. Please contact Microsoft or your PC manufacturer with questions.
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Do I have to use the Impulse Policy Key?
Yes. All PCs are required to use the Impulse Policy Key to ensure a safe computing environment for all and it is required for network access.
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What happens if I uninstall the Impulse Policy Key?
You can uninstall the Impulse Policy Key at any time; however within minutes you will then be unable to access the Network. You will be required to reinstall the Policy Key as if you are a new user to gain Network access.
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How do I know the Impulse Policy Key is running?
On Windows machines with Windows 2000 or Windows XP, you can right-click any blank space on the task bar at the bottom of your screen and select the option “Task Manager”. When the Windows Task Manager appears, click the “Processes” tab and look for the process “PolicyKey.exe”, “SCClient.exe” or “scManager.sys”.

On Macintosh machines, you can go to “Applications” and click on “Utilities” and then click on “Activity Monitor” and look for “PolicyKey.exe”, “SCClient.exe” or “scManager.sys”.
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Is the Impulse Policy Key compatible with my system?
Yes. The Impulse Policy Key is compatible with and required for Windows Systems, Macintosh and Linux.
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What does the Impulse Policy Key actually do?
The Impulse Policy Key continuously validates that your system has the minimum security software running and up-to-date as per the University of Denver’s Acceptable Use Policy. The Impulse Policy Key will also certify that certain applications, prohibited by the University of Denver’s Acceptable Use Policy, are not running.
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What are these selected applications?
Once the Impulse Policy Key is enabled, we will require that your Windows Automatic Updater is running. You must also have running anti-virus software installed with the most current definitions available.
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What are the benefits?
The Impulse Policy Key is part of the University of Denver’s effort to help you keep your computers as free as possible from viruses, spyware, and operating system security holes. Machines protected in this way generally perform much better and require much less downtime due to damage caused by malicious software.
Also, the Impulse Policy Key can help to ensure that the average user has the fastest possible browsing experience while connected to the University of Denver’s network. It does this by:

Ensuring that communication from malicious software does not flood the University’s Network connection, resulting in much slower connections for legitimate users.

Restricting certain applications that would otherwise consume an unfairly large share of the University’s bandwidth, again resulting in a slower connection for the majority of users.
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What if my system is not up-to-date?
If your system has been determined not to be up-to-date, your computer will be “quarantined.” While quarantined, you will still have access to academic resources such as online learning tools and online registration, as well as to update servers for your operating system, anti-spyware and anti-virus software.
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What about my privacy?
Your privacy is important to us. The Impulse Policy Key scans only for Windows update servers compliance and anti-virus. No user data is collected or stored.
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How do I set it up?
  1. Plug into a wired port
  2. Open your Internet browser
  3. Within a minute or so you will be prompted to log in
  4. Authenticate to the network using your DU ID and password
  5. Click on the link to accept the University of Denver’s Acceptable Use Policy and install the Impulse Policy Key.
A few seconds after the installation is complete, you will receive a web page informing you of any steps required to ensure your system’s security. If your system is already in compliance with the University of Denver’s policies, you will be free to access the network immediately.

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