Network Access Control (NAC) - Frequently Asked
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.
download operating system software security updates while quarantined
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
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.
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
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.
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”.
Impulse Policy Key compatible with my system?
Yes. The Impulse Policy Key is compatible with and
required for Windows Systems, Macintosh and Linux.
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.
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
What are the
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.
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.
What about my
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.
How do I set it
- Plug into a wired port
- Open your Internet browser
- Within a minute or so you will be prompted to log in
- Authenticate to the network using your DU ID and
- 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