Technology Requirements
Fannie Mae's technology solutions require a standard hardware and software configuration. Users’ systems should adhere to the requirements listed below to experience technology performance at or above the expected levels as determined by our performance baseline testing. Most requirements and settings must be set up at an organizational level. Individual users should involve their organizational information technology department to address any concerns or questions before contacting Fannie Mae.
This information does not apply to integration solutions; see the Technology Integration web page for details.
Security settings update
Help ensure uninterrupted access to Fannie Mae applications with current, supported encryption ciphers and the most up-to-date web browsers by October 23, 2026.
Information Security
Fannie Mae is intensely focused on the security of our technology tools, customer transactions, and data provided to us. We require specified security settings for users to help keep your and our systems and data safe. We also continuously monitor the information security environment and update our security requirements as needed.
Standard Specifications and Configurations
| Hardware/Software Specifications | Configurations |
|---|---|
| Operating System | Fannie Mae applications are currently compatible with computers that run on Windows® 11 and 10. For more information on Microsoft's support policy regarding the Windows family of desktop operating systems, visit Microsoft's website. Technical support is not provided for running our applications on other operating systems or on multi-user, "thin-client" solutions such as Citrix®. |
| Communications | Use an Internet Service Provider (ISP) of your choice to provide a high-speed Internet connection (T1, DSL, cable, fiber-optic). |
| Web Browser | Your Web browser must be set to enable Java™ and JavaScript™ and to accept cookies. The following browsers have been tested by Fannie Mae and support secure connectivity to Fannie Mae systems:
Our technology applications are developed to run most optimally on the web browser versions listed. Users may encounter unexpected behavior and/or loss of some functionality if attempting to use a lower (or higher) version of the compatible browsers, or browsers not listed. Learn how to check for browser updates at the bottom of this page. |
| Security Settings |
|
| Domain Name System (DNS) Configuration | To maintain reliable connections to Fannie Mae, we recommend using these DNS practices for network connection settings:
Note: The Desktop Underwriter and Desktop Originator URLs are resolvable across the Internet. |
| Adobe® Acrobat® Reader | Many documents on our website are in Adobe Portable Document Format (PDF). Download the free Adobe Acrobat Reader from Adobe’s website to view and print PDF files. |
Use the steps below to check your Google Chrome version and install any available updates.
Check your version
- Open Google Chrome.
- Select the three-dot menu in the upper-right corner.
- Select Help.
- Select About Google Chrome.
- Chrome will display the current version and automatically check for updates.
Update your browser
- If an update is available, allow Chrome time to download it.
- When prompted, select Relaunch to complete the update.
- After Chrome reopens, return to About Google Chrome if needed to confirm the version is at or above the vendor recommended version.
- If you do not see a Relaunch option, Chrome is already up to date.
Screenshots
Use the steps below to check your Microsoft Edge version and install any available updates.
Check your version
- Open Microsoft Edge.
- Select the three-dot menu in the upper-right corner.
- Select Help and feedback.
- Select About Microsoft Edge.
- Edge will display the current version and check for updates automatically.
Update your browser
- If the About Microsoft Edge page shows that an update is available, select Download and install.
- Allow Edge time to download the update.
- If prompted, select Restart to finish applying the update.
- After Edge reopens, return to About Microsoft Edge if needed to confirm the version is at or above the vendor recommended version.
- If the page says Microsoft Edge is up to date, no further action is needed.
Screenshots
Safari is included with macOS. If a newer version of Safari is available for your Mac, you can get it by installing the latest available macOS update or upgrade.
Check your version
- Open Safari.
- In the menu bar at the top of your screen, select Safari.
- Select About Safari.
- Review the version number shown in the window.
Update your browser
- Open Software Update on your Mac.
- You can do this by selecting the Apple menu in the upper-left corner of your screen, then selecting System Settings > General > Software Update.
- Allow your Mac to check for available software.
- If an update is available, select Update, Upgrade, or Restart Now, depending on what appears on your screen.
- After the update is complete, reopen Safari and confirm the version is at or above the vendor recommended version.
Screenshots
Use the steps below to check your Mozilla Firefox version and install any available updates.
Check your version
- Open Mozilla Firefox.
- Select the menu button in the upper-right corner.
- Select Help.
- Select About Firefox.
- Firefox will display the current version and automatically check for updates.
Update your browser
- If an update is available, allow Firefox time to download it.
- When the download is complete, select Restart to update Firefox.
- After Firefox reopens, return to About Firefox if needed to confirm the version is at or above the vendor recommended version.
Note: If Firefox was installed through the Microsoft Store, updates are provided through the Microsoft Store rather than through Mozilla’s standard installation/update path.
Screenshots
For More Information
For more information or assistance, please contact your Fannie Mae customer account team or our Technology Support Center (open every day, 24 hours a day, except major holidays).
