Orbi admin

Orbi AX systems don't support separation of SSIDs. 

You'll need to set up the PW again. 

To set up password recovery:
Launch an Internet browser from a computer or mobile device that is connected to your router’s network.
Type http://www.routerlogin.net or http://www.routerlogin.com.
A login window opens.
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 screen displays.
Select ADVANCED > Administration > Set Password.
The Set Password screen displays.
Select the Enable Password Recovery check box.
Select two security questions and provide answers to them.
Click the Apply button.
Your changes are saved.

If this fails to work, Wire connect a PC to the router and factory reset the router using the back push pin button. Hold it in for 15 seconds then let go. Power OFF the ISP modem for 30 seconds than back on. Wait for the WHITE led to slowly pulsate on top of the RBR, then log in to orbilogin.com using a web browser and walk thru the setup wizard. This time write down all important information for safe keeping later on.

Netgear has set up a community forum specifically for the Orbi AX (WiFi 6) products. Most of the people who watch that forum are more likely to have experience with Orbi AX and know how to work it better than those of us who follow this "general Orbi" forum. Might be more likely to find someone who has a solution if the question is posted there:
https://community.netgear.com/t5/Orbi-AX/bd-p/en-home-orbi-ax

Please use this link to the main forum product list to review and choose where to make your posts. 
https://community.netgear.com/t5/NETGEAR-Forum/ct-p/en-netgear

Thank you