Weird one π My Xbox Series S in a dorm works offline, but online sign-in fails every morning with this:

Can't connect to the server.
The server may be busy, or your network connection
may have been lost. Try again later.
Connection test: Internet Failed
details say 0x80a40019, im on a mesh network, my siblings profile on the same console also struggles, so i dont think its my account, where should i start?
if it helps, the network test does show a warning about the multiplayer connection, but i dont understand what it means. any help is appreciated.
offline games still work, so the console itself seems fine. its only the sign-in and anything online that fails... im running out of ideas and patience.
nothing is more permanent than a temporary workaround
