Automatic Firmware Updates Missing radio buttons to Enable / Disable

router = RBR850  AX6000 firmware = v4.6.3.16.2.0.51 o/s = windows 10 / 11. Browser = Chrome

1. Launch a web browser from a computer or mobile device that is connected to the network.
2. For Orbi enter http://www.orbilogin.net or http://www.orbilogin.com.
A login window opens.
3. Enter the router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive.
The BASIC Home page displays.
4. Select ADVANCED > Administration > Router Update.
The Router Update page displays.
5. Scroll down to the Router Auto Firmware Update section.
** 6. To enable the auto firmware update features, select the Enable radio button.
** 7. To disable the auto firmware update features, select the Disable radio button.
8. Click the Apply button.
Your settings are saved.

**  Step 6 and 7 : radio buttons do not display