Error 0001 on Android App, with stream login loop on Windows 10 Laptops

Okay, first I request that no employee or person attempt to mark this discussion thread as "private".  It wasn't marked private when I posted my first thread on this, but apparently someone wasn't happy with what I had to say about the support I have received so far. 

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I am a new DirecTV Stream customer -- signed up on Thursday.  While everything works on the Fire TV Sticks it does *not* work on either the Android app on my Galaxy S20+ (so Android 11), my daughter's Motorola G Play (also Android 11) or on any laptop I have access to (two of them, Windows 10) that are connected via WiFi to my ATT Fiber Wifi Gateway.  

Steps on the laptops include making sure both Chrome and Edge are updated, clearing all data, disabling all extensions, and attempting in incognito browser windows in both browsers. On both laptops, there is some error that shows but ends up getting hidden by the redirects back to the login page. On Android steps included were clearing data and cache (basically a soft re-install) as well as doing a full uninstall-reinstall of the app.  The error code there is 0001, just says "Try Again Later", doesn't say the problem.

With Support I of course did all of the above again, and reset my password, and did a full 24 hour pause of any attempts (which I understand could allow server-side tokens to expire, but still felt like it was an attempt to get me off the phone).  Nothing has worked, and the only thing changing the password did was make me have to reprogram the Fire TV Sticks with the new password.

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To clarify about how this started, I was originally a ATT Fiber/DirecTV physical satellite customer, and switched from DirecTV Satellite to DirecTV Stream Thursday.  When I worked with the agent to follow the email instructions and link the DirecTV Stream Account to my AT&T login, it errored out.  However, when I logged into the regular AT&T portal, everything seemed linked, and stuff worked on my Fire TV Sticks, so the agent said to ignore it.  Nothing has ever been logged into from another network besides the home network.  Verified last night in my TV's app that it IS recognizing this IP as my home network.

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I am aware there may be "180 threads" on this issue, as an "Expert" who was somehow able to reply and mark my original thread on this topic as "private" said (it wasn't marked that way when I posted originally.  It's why the multiple agents saying this was a "new issue" to them was a surprise to me.  And believe me, I searched threads for a resolution I could try on my end (that 'Expert's" solution was to try incognito, which I'd done in Edge and Chrome).  However, marking threads on it as "private" may be why my attempts to search can't find a resolution I haven't already tried!

I am still in my trial period, and at this point I am considering just cancelling and going for a different streaming provider for having legal access to cable networks, even if it means paying more for my fiber.  At least then I might not have to scroll through a ton of sports channels I'll never use.