RBS50Y-v2 Firmware will not update past V2.3.5.32

Thank you very much for your prompt and excellent suggestion! After I tried connecting, as you suggested, wirelessly DIRECTLY to my new-to-me third Orbi RBS50Y-v2 outdoor satellite via its IP address instead of through my main Orbi RBR40 router, I discovered I could not log into it (invalid password). When I went into my third Orbi RBS50Y-v2 outdoor satellite's Administrative screen to try to set the password the same as my main Orbi RBR40 router's password, I then discovered the updated RBS50Y-v2 satellite requires a minimum of a 10-character-long password whereas my main RBR50 router only requires an 8-character password. After I changed my new-to-me Orbi RBS50Y-v2 and main Orbi RBR40 satellite's passwords to the same, new, 10-character passwords, I was able to manually update my new-to-me Orbi RBS50Y-v2's firmware from v2.3.5.32 directly to the latest version (V2.7.4.12)! 🙂

Thanks again for your excellent suggestion!