The client is not running the anti-cheat, or has failed the anti-cheat authentication (4)
Im using steam
Every time I try and join a game regardless of type or sometimes even just get to the lobby I consistently get kicked with this error. It happen after the update on Sep 29, 2026.
Its is very frustrating since I paid for the battle pass and cannot continue to play matches anymore due to the error, I feel like im wasting my money and time
same bro, i tried to switch to ea app, it worked for some time (like 5 games) and then started kicking me again. I just joined ranked game and lost 100rp and got banned for 10 minutes cuz of this issue LOL. Even tho they said they had fixed it.
Same here no solution yet. Not even a reply to the bug.
The client is not running the anti-cheat, or has failed the anti - cheat authentication. [4]
same here as well :/
I'm experiencing the same EA Javelin Anti-Cheat Error [4]. It started on October 21, 2026, after Apex had been working normally.
My system is Windows 11 25H2, OS build 26200.9711. The error occurs on both Steam and the EA app when I try to join a match.
I've verified the game files, reinstalled EA Javelin Anti-Cheat, confirmed the service is running, checked Windows Security and Event Viewer, and run SFC. The issue persists, with no relevant CodeIntegrity events.
Could EA investigate whether this is a Javelin-side issue affecting multiple players?
same here i already do everyting (Re-install game, Run As admin, reset the config, verify game files) but still problem :((
Community ManagerHi there,
Sorry to hear that you are being affected by EA Javelin Anticheat Error [4].
Could you please try the two solutions shared by players in this thread?
If the issue continues, please share your DxDiag report with us.
