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What are the supported browsers and settings for online banking and billpay?

The operating systems and desktop browsers that are officially supported by STCU's Online Banking and Billpay are:

Operating systems:

Desktop browsers*:

*Beta versions of browsers are not officially support.

Minimum system requirements and recommended connection:

  • A valid email address and telephone number (an SMS capable device is optional but required to enable SMS alerts).
  • Standard PC or Mac (Pentium IV/1 GHz processor or higher/500 Mb RAM or greater).
  • A cable, DSL or ISDN internet connection is strongly suggested. Dial-up or satellite internet connections are not recommended for use with STCU's full desktop site. Instead dial-up or satellite internet connection users should use STCU's mobile online banking. Some satellite cable connections can also have difficulty supporting encrypted (HTTPS) applications. Because STCU's online banking is HTTPS encrypted for the safety of your financial information, some satellite cable connections may exhibit slow or sporadic response.

Screen resolution:

  • Minimum 1024 x 768
  • Windows Display Properties settings should be 96 dpi (Windows default)
  • Browser Text Size should be medium
  • Browser page zoom should be 100%

Additional information:

  • Javascript must be enabled for the application to function optimally.
  • If JavaScript is disabled, certain features and functions will not work.
  • If you are using an Amazon Kindle, some features of our full site may not work correctly. We do not officially support the Kindle's browser; however, you may find our mobile site works better on your device.

We recognize that our members have a variety of operating systems and web browsers from which to choose, and we want our members to have the best possible experience on the web when using our online banking system. However, we also recognize that it is nearly impossible to support all operating systems and web browsers. You are welcome to continue using an operating system or web browser that we do not officially support. However, STCU will be limited in our ability to support your use and we'll sometimes be unable to guarantee resolutions if you encounter unexpected behavior. We apologize for any inconvenience this may cause.

How do I resolve common browser complications when using online banking or billpay?

There are a number of possible browser settings that may be causing undesired behaviors in online banking or Billpay. The most common complications can be fixed by trying each of the eight following options until the behavior is corrected:

Step 1: Are you sure you're using a supported browser and operating system?

If you are using a compatible browser and operating system, proceed to Step 2.

Step 2: Attempt to start your browser in Private/Incognito mode to see if the same error persists. Find your browser below:

  • Internet Explorer, open the Internet Explorer browser, choose the gear icon in the far right hand corner (or Tools), and select InPrivate browsing.
  • Edge, open the Edge browser, select the 3-dots icon in the far right hand corner, and select New InPrivate Window.
  • Chrome, open the Google Chrome browser, choose the 3-dots icon in the far right hand corner, and select New Incognito Window.
  • FireFox, open the Firefox browser, choose the 3-lines icon in the far right hand corner, and select New Private Window.
  • Safari, open the Safari browser, select File in the far left hand corner, and select New Private Window.

Now log out and log back in. Does that fix the problem? If not, proceed to Step 3.

Step 3: Try starting your browser in "No Add-ons" or "Safe Mode".

  • For Internet Explorer users, click on Start, Programs (or All Programs), Accessories, System Tools, and choose Internet Explorer (No Add-ons). Using windows 8 operating system or later? You can run Internet Explorer in No Add-ons mode by pressing the Windows key + "R" on the keyboard, enter iexplore.exe -extoffinto the command line and press enter.
  • For Firefox users, please refer to Mozilla's Safe Mode help article.
  • Chrome users can disregard this step.

Now log out and log back in. Does that fix the problem? If not, proceed to Step 4.

Step 4: Delete all temporary internet files, cookies and clear your browsers cache. (Note: this will likely require that you re-register your computer in Online Banking. For info on ways to avoid having to continually register your computer, please refer to this helpful article: Do I have to answer those security questions every time I access my accounts? This will help ensure that your cookies are enabled and being retained by your browser).

Now log out and log back in. Does that fix the problem? If not, proceed to Step 5.

Step 5: Ensure Compatibility View is not enabled (for Internet Explorer only):

  1. Click on Tools in the Menu Bar. (If you don't see the Tools option, you can press the ALT button to expose and the Menu Bar which contains the Tools option.)
  2. Select Compatibility View Settings. (If using Internet Explorer 8.0 or later, you must click on the Tools option in the Menu Bar to locate Compatibility View Settings.)
  3. Look for stcu.org in the "websites you've added to Compatibility View" box.
  4. Click on stcu.org and click the Remove button.
  5. Ensure the "Display all websites in Compatibility View" option is unchecked (i.e., turned off).
  6. Click Close.

Now log out and log back in. Does this fix the problem? If not, proceed to Step 6.

Step 6: Add the STCU website to your trusted sites list (for Internet Explorer only).

Open Internet Explorer, go to Tools, Internet Options, and click on the Security tab.

Click on the green mark that says "Trusted sites" .

Click on the Sites button below that.

Add the following websites to your trusted sites list: https://my.stcu.org and https://www.stcu.org.

Click Close, and then click Ok.

Now log out and log back in. Does that fix the problem? If not, proceed to Step 7.

Step 7: Try restoring your browser settings back to default. Please note that this will likely remove any saved browser auto-fill information. Resetting your browser settings will also clear out your homepage and possibly remove toolbars from view. Please visit the Microsoft Support page for restoring any missing features.

Click on your browser below for instructions on resetting the browser's settings:

Now log out and log back in. Does that fix the problem? If not, proceed to Step 8.

Step 8 Try another browser. If these steps have failed to solve the problem, trying another browser may prove to solve the problem. Choose any of the browsers below that are supported on your specific device.

Now log out and log back in. Does this fix the problem? If not, we're here to help! Please contact us or visit us at any STCU branch during business hours.


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