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Omnitracs Knowledge Base


The following topics help you use the Hours of Service application.

Microsoft Critical Updates

Microsoft Internet Explorer 9 Critical Updates

You may see minor problems in the Omnitracs web-based applications if you have not applied Microsoft's Critical Updates package. To download critical updates:

  1. From the Tools menu in Internet Explorer, click Windows Update.
  2. From the Windows Update page, click the Product Updates link.
  3. If you have not previously used this method to install product updates, a security warning message prompts you to install the Windows Update Control package. Click the Yes button to install the updates.
  4. On the Microsoft Updates page, click the Express radio button.
  5. Click the Install Updates button.
  6. Follow the instructions to complete the download and installation.
Microsoft Critical Updates for Windows Vista, 7, and 8

To download critical updates:

  1. Click the Windows Start button.
  2. In the search box, type Windows Update.
  3. Click Windows Update.
  4. If updates are available, click Install Updates.
  5. Follow the instructions to complete the download and installation.

Browser Requirements

Hours of Service doesn't display correctly.
Hours of Service displays correctly with Internet Explorer 11.0 and Google Chrome.
I see page errors when viewing Hours of Service.

Browsers often cache (store) web pages and images on your local hard drive so that web pages load faster. If the cache is too full it can cause page errors. Perform the following steps to clear your browser's cache:

  1. From the Tools menu of your browser, click Internet Options.
  2. In the Temporary Internet Files section, click Delete Files.

Email Alerts

When I receive an email alert, the contents are misaligned or poorly displayed.
This is not a browser issue. It is a problem for users who receive email using and have the "classic" display setting. To mitigate this problem, change the display setting to "advanced."


I made a change on the HOS Setup page but some of the mobile units were not updated.
Mobile units are only updated if they are turned on within 30 minutes of the time that you save the change in the HOS Setup page. If the mobile units were not on, turn them on, make a change on the HOS setup screen, and click Save.


I get an error when I use the Tab key.
A runtime error may occur when you use the Tab key to move the cursor. To prevent this error, use the mouse to move the cursor.

Screen Size

My screen is small and I want to see more information.
You can maximize the Internet Explorer window and change to a full-screen view by pressing F11. Press F11 again to return the window to its original look.

Timing Out

When I leave Hours of Service open for a while I have to log in again.
Hours of Service has an automatic 90 minute lockout. This helps to keep your data secure.


The report I ran is not displaying.
If you are using a pop-up blocker on the browser, make sure that it is disabled for the HOS website. Pop-up blockers prevent reports from displaying.
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