Roblox Error 304 means the game is temporarily not joinable even though it has active servers. Developers sometimes take their game offline briefly for updates, and the transition period can produce Error 304 for players trying to join.
Usually server-sideLast verified: 2026-08-19
Developer update in progress
When a developer pushes an update, Roblox shuts down old servers and spins up new ones. During this window, join requests fail with Error 304. This transition usually takes 2–5 minutes.
Scheduled maintenance
Some experiences have scheduled downtime for major updates. Check the game's description or the developer's social media for any downtime announcements.
How to fix step by step
- 1Wait 5–10 minutes and try again — update transitions are usually brief
- 2Check the experience's description page or the developer's social media for maintenance announcements
- 3Try a direct server join from the Servers tab — individual servers may still be up
How 304 differs from related codes
- Error 524: Roblox received an invalid or timed-out HTTP response from its backend. (usually server-side)
- Error 517: Roblox returned an HTTP 517 or server-side error while loading an experience or API request. (server or client)
- Error 529: Roblox returned an HTTP 529 or service-unavailable style response during join or API calls. (server or client)