Roblox Error 287 is an authentication failure. Roblox checks your account credentials when you join any experience, and Error 287 means that check failed. This is often a temporary server-side issue rather than an account problem.
Usually server-sideLast verified: 2026-08-19
Session expiry
If your Roblox session has expired (you have been logged in for a long time without activity), the authentication token becomes invalid. Log out and back in to refresh it.
Server-side issue
Roblox's authentication service occasionally has brief outages or slowdowns. Check roblox.com/status — if auth services are listed as degraded, wait and retry.
How to fix step by step
- 1Log out of Roblox completely and log back in
- 2Clear your browser cookies and Roblox app cache, then re-login
- 3Check roblox.com/status for authentication service issues
- 4Restart the Roblox app — do not just close the game window
How 287 differs from related codes
- Error 401: Roblox could not authorize your session — login or token expired. (server or client)
- Error 400: Roblox rejected the request as invalid — often cache or outdated client. (usually client-side)
- Error 6: Roblox was unable to establish a connection to the game server. The client timed out before a session could be created. (server or client)