Streaming on ALL secondary devices... Roku, Firestick, Smart TVs

Since October 2022, I have had issues with 2 Firesticks getting an error code saying there is no access to stream.  I have called CS SEVERAL times AND have been on online chats, SEVERAL times. They said sometimes firesticks don't work.   I bought an LG TV to rectify the situation and same thing happened, so then I bought a Roku.... same thing, same error code.  They FINALLY sent a technician out and he never saw this particular error code before. He couldn't figure it out on my TV, or my Roku.  He saw on my account that I had called in several times, and there are a TON of notes regarding this.   He called his 'SPECIAL" customer service number, got right through and she said this is a national problem with no fix date, therefore I went through all that for nothing.  If that were the case, other people would have the same issue AND all of Customer Service should knonw about it.  SO, I switched to Xfinity stream with the notion that I can use a firestick or Roku on my other TVs.  Since that isn't happening, I should get flex boxes for free for my TVs... OR I should get a lower price being that I can only stream on 1 TV.   In order to watch TV anywhere else, I have to use the app on my  phone and mirror it to the TV.  That is not something I paid for.  This needs to be rectified.