The TP-Link Deco XE75 Pro 3-pack will cover your entire apartment with powerful Wi-Fi 6E speeds, supporting up to 200 devices, at a 38% discount on Amazon. The TP-Link Ultra-Portable Wi-Fi 6 AX1500 ...

If you never changed the router's login credentials, many use the default username admin and the default password password. Try that combination to see if it works. Otherwise, you can run a web search ...