Browsing to One-Door Controllers
One-door controllers use an older hardware type which does not support more recent security protocols and
cipher suites. This means that any one-door controller with a security certificate installed is not trusted by modern
web browsers. Most web browsers will not allow users to access the web interface pages of these controllers, even
if users trust the site and accept the risk.
If you have a one-door controller, you may see one of the following errors when you attempt to access the web
interface:
⦁ Chrome: "This site can't be reached"
⦁ Edge: "Hmmm... can't reach this page"
⦁ Firefox: "Secure Connection Failed" (PR_END_OF_FILE_ERROR)
In this situation the recommended solution is to allow access to the controller's web interface by creating a Firefox
profile with downgraded security.
To avoid security vulnerabilities it is recommended to use this profile only for accessing one-door controllers.
1. Download and install Firefox from the Mozilla website if you do not already have it.
2. Open Firefox, type about:profiles into the URL bar and press Enter.
3. Click Create a New Profile to open the wizard.
4. Click Next.
5. Enter a descriptive profile name (e.g. Controller).
6. Click Finish.
7. Click Launch profile in new browser.
You can return to the about:profiles page at any time to switch between profiles or set a default profile.
8. In the new browser, type about:config into the URL bar and press Enter.
9. Click Accept the Risk and Continue.
10. In the search bar, enter security.tls.version.enable-deprecated.
11. By default this is set to false. Click the toggle button on the right to set it to true.
12. Attempt to browse to your controller on https://192.168.1.2 (use your controller's configured address if it has
been changed from the default). Firefox will report that there is a potential security risk, because the controller
has a self-signed certificate.
13. Click Advanced...
14. Click Accept the Risk and Continue.
15. The browser will present the controller's login screen. In future, you should be able to browse to this controller
using this Firefox user profile.
Protege WX Integrated System Controller | Configuration Guide 8
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