Error 91 is a common connection failure at login or lobby. Epic outages, DNS issues, and firewall blocks all trigger it — start with Epic Games status.
Server or clientUpdated 2026-06-08
How to fix step by step
- 1Check Epic Games / Fortnite status on Oracnoos.
- 2Restart Fortnite and the Epic Games Launcher.
- 3Reboot router and flush DNS.
- 4Disable VPN, proxy, and aggressive firewall rules.
- 5Verify Epic servers on status.epicgames.com.
- 6Wait during confirmed Epic incidents before reinstalling.
How 91 differs from related codes
- Error LS-0013: Fortnite could not find or join a match — often EOS or queue overload. (server or client)
- Error ESP-BUZZ-001: Fortnite failed to connect through Epic Online Services during login or matchmaking. (server or client)