Why can I connect to Xbox live, but I cannot connect to any game servers

I just came home for winter break from college, and I brought my Xbox series x with me to play games. I was not experiencing any issues before I had come home to my parents house, but now when I turn on my Xbox I can connect to Xbox live and join parties and talk with friends but I can not connect to any online games servers. I’ve reset my Xbox, router, and modem multiple times but nothing has fixed this. Does anyone know a fix for this? The only way for me to connect to the game servers is if I use my phones hotspot but I would rather not waste my data doing that

:)