If the game refuses to start, the first suspect is Origin or EA App — the launcher has to be running and logged in before Apex even tries to load. Restart the launcher, verify game files through it, and make sure your antivirus isn't silently blocking the executable. Running the launcher as administrator fixes this in a surprising number of cases.
A stable connection to EA's servers depends heavily on your local setup. Switch from Wi-Fi to a wired Ethernet connection if possible — wireless introduces inconsistent latency that no server-side fix can compensate for. Also check if something on your network is eating bandwidth: streaming, large downloads, or another device doing updates can spike your ping mid-match.
Error codes like 'leaf' or 'shoe' usually mean the game lost contact with EA's matchmaking servers mid-session. This isn't always your fault, but you can reduce the odds: restart your router, flush DNS (ipconfig /flushdns on Windows), and make sure UDP ports 1024–1124 and 3659 aren't blocked by your firewall or router settings.
Freezes during gameplay are often a VRAM or RAM issue, not a network one. Lower texture quality in the video settings and close background apps before launching. If the freeze comes with a crash report, that log file in the EA App folder is worth checking — it usually names the exact module that failed.