Orbi app on android phone "no internet connection"

Thanks, Plemans.  It is a Hitron EN2251 modem from Spectrum.  Orbi works fine from my desktop PC.  I am not aware of any DNS blocking although I'm not that computer literate.  My Orbi desktop speed this afternoon was 925Mpbs down and 40.35 up so it should not be an internet issue, in my opinion.  The problem is the Orbi app on my Samsung Galaxy S25 Ultra phone.  All other apps work fine on the phone.  The Orbi phone app is version 2.50.0.5135.  On the phone, I open the ORBI app and it says No Internet Connection.  Troubleshoot or Try Again.  Troubleshoot says make sure device is connected to internet (it is), go to area with lower network congestion (I think this is NA and I'm sitting 2 feet from the modem and router, run a speed test (done and fine), restart modem and router (done), try again in a few minutes (done multiple times over several days), and contact your ISP.  I haven't contacted Spectrum about this but the modem and router is working fine for the desktop PC.