If you’re paying for internet access, it should work throughout your whole home, but, unfortunately, that’s not always the case— even in an apartment, sometimes. A lot of us have experienced that one dead zone at home where the internet barely works and you just keep hitting refresh, waiting for a page to load until you just give up and head to another room.
If you want to fix the problem, you don’t have to call your internet provider and upgrade to a more expensive plan. You may just need a WiFi extender to improve the signal reliability in your space.