Set yourself a static IP address (just copy what ever your router gives you and change the last number/s to something much higher i.e .01 - .101) This stops your router assigning that ip to your phone or laptop etc. Then do all the port forwarding you can find required for your system AND game (there’s at least ten) set to your chosen ip address. [spoiler]Enjoy your game[/spoiler]

I have exactly the same issue. Many years ago, I used to play Destiny 1 on PS3, and out of pure curiosity, I bought it on Xbox Series S, created a new character, and every time I land in the Tower, I get 'Error Code Beaver.' Is there any chance to fix this somehow?

Same. Getting to the Tower or the Reef is such a hassle. I thought I'd create a new character and enjoy the nostalgia of Destiny, and wow, it's still a blast! But the real bummer is the endless errors when trying to access the Tower or the Reef (PS5). Seriously, why are they so terrible at fixing these issues? I have a gig internet connection with almost the same speed for uploads, all hardwired and on a dedicated port. The only way I can actually reach these locations is by running a connection test every single time I want to go there, which is super frustrating. Does anyone have any other thoughts or know if this will get resolved, or do they just not care any more?