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Why am I unable to access Blackboard or while connected to the college network?

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Article SummaryUsually this problem is caused by your DNS being redirected or still set being set to your home network.
This articles applies to staff, faculty, and students.
When you cannot access college web services, but you can access external Internet sites, the problem is typically a DNS issue. For more information on DNS, see What is DNS? 
This may happen if you use a DNS service to access foreign websites, or your DNS may be still set to your home network.

Use the following steps to resolve this issue on Windows or Mac systems. If these steps do not resolve your problem, see the Other possible reasons section at the bottom of this article.

To resolve the DNS issue - Windows (Vista/7/8/8.1)

  1. Open the Network and Sharing Center. Do this by clicking the Network Connections icon in your system tray (bottom right of the screen) and selecting Open Network and Sharing Center.
  • Alternately, you can select the Windows key + R together to open a run dialog, and enter the following: control /name Microsoft.NetworkAndSharingCenter.
  1. Select Change adapter settings.
  2. If you are connected to the college wireless network, right-click the adapter marked Wireless Network Connection and select Properties and skip to step 5.
  3. If you are connected to the college network by a network cable, right-click and select Properties for the Local Area Connection.
  4. Select Internet Protocol Version 4 (TCP/IPv4) > Properties.
  5. Select Obtain DNS server address automatically.
  6. Click OK, and Close.

Note: You may have to disconnect and reconnect to the network in order for this change to take effect.

To resolve the DNS issue - OS X (Mac)

  1. Click the airport icon in the menu bar at the top of the screen.
  2. Select Open Network Preferences....
  3. Select Advanced... in the bottom right of the Network window.
  4. Select DNS.
  5. If there are entries under DNS servers that are not or, click them and click the '-' button below the list until they are all removed. Once removed, the Algonquin DNS ( should be displayed.
  6. Click OK and Apply. You can close this window.
Note: You may have to disconnect and reconnect to the network in order for this change to take effect.

Other possible reasons for DNS issues

There are third party applications that may also cause a similar issue, including HotSpot Shield, Media Hint and Hola Unblocker. It is recommended you disable any software used to get around geographical restrictions while you are accessing college services on campus. In addition to this, you may also need to follow the steps above if you have not done so.

Note: Algonquin College does not support, promote or endorse these 3rd party applications or the practice of using VPN or other services to circumvent geographical restrictions on Internet services.



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