This has probably been answered somewhere deep down but the only results I get are these AI influenced ones showing an error where it simply doesn't launch. My problem is that it indeed launches with the expense of simply failing to have the link between my EA and Steam and gives me the error code EC 10011 and signing me out of EA app. Their customer support isn't very big of a help and any other trouble shooting method just hasnt worked.
So far ive tried to:
Verify integrity of files
Unlink then relink the same Steam account
Do a fresh uninstall and reinstall
Launch through EA app + clear app cache
Fix router + DNS issues via cmd prompt (Supposedly servers cant ping me or something)
Wipe my Frosty mod manager + Frosty fix I used for PVZ GW2
Disabled Anti Virus + allow it through controlled access
Run any related apps as Administrator
Supposedly this happened with Squadrons but the only relevant fix was to sign in through EA app with Steam, then link the email for the initial EA account (Which i've done previously with Apex) and the AI suggests to reinstall and uninstall Easy Anti-Cheat (Which I fail to see how its relevant considering this uses FairFight + didnt work after trying anyway)
Source: r/StarWarsBattlefront · by /u/StrategySufficient41