Surfboard central keeps reseting

Thanks for responding, these are the issues. I am installing a new SB8200 with a W31 router. Once installed and working I would like to add 2 W31 satellites. This configuration all worked when using the Surfboard max software. I upgraded my android phone to a galaxy S21 FE from a galaxy S9. When this took place the app upgraded to the Surfboard Central. I can see the modem and router but cannot add satellites.  Also anytime the Surfboard Central app is closed or another app opened and I go back to Surfboard Central, it prompts me to onboard all over. I did try to uninstall and reinstall, I also tried it on the galaxy S9. Find below the steps:

1. Open app
2. "Get Started" screen.
3. Permissions.
4. Select device, ISP cable without Wi-Fi.
5. SB8200.
6. Xfinity.
7. Activate, Skip.
8. I'm Online.
9. Scan bar code.
      S/N 21C541334702536
      mac F8790A27EA4D
10. REGESTRATION GOOD.

App shows modem and router.
If app is closed or another opened then surfboard app reopened, go back to #2.
If add new satellite selected, pressing next does nothing.
Restart router button works.
Tapping WAN settings closes app then back to #2.

Software
Arris SURFboard Central
Ver. 4.0.10

Modem
M/N SB8200
S/N 21C5 4133 4702 536
mac F8 79 0A 27 EA 4D

Router
M/N W31
S/N  94D3 J945 5100 398
MAC 74 8A 0D FF A7 25

Satellite 1       Add new satellite selected, pressing next does nothing.
M/N W31
S/N  95S3 J945 5100 110
MAC D4 3F CB DD 34 19

Satellite 2       Add new satellite selected, pressing next does nothing.
M/N W31
S/N  94F3 J945 5100 075
MAC 74 8A 0D FF 57 1B
 

It seems like the issue is with the mobile app.