Yes, it appears Roblox is currently down or experiencing a major service disruption as of today, December 19, 2025. Many users are reporting the exact error you mentioned: “Service Instances Unavailable” (often accompanied by Error Code 9007 or 503).
Current Status Summary
Is it down? Yes. Widespread reports confirm players cannot join games or access the website.
The Error: “Service Instances Unavailable” means the Roblox backend servers (specifically the ones that host the game instances) are failing to communicate.
Cause: This is a server-side outage, likely involving DataStores (the systems that save your game progress).
What You Should Do
Do NOT Uninstall: This is not a problem with your computer, phone, or internet. Reinstalling Roblox will not fix it.
Stop Trying to Save Data: If you happen to be in a game (or in Roblox Studio), do not try to save anything manually if possible. Since DataStores are affected, you risk losing data or overwriting good saves with corrupted ones.
Wait it out: Engineers at Roblox are likely already working on a fix. These types of outages usually last anywhere from 1 to 4 hours, though major ones can take longer.
Also Read : Why is My Valorant Not Opening
How to Check for Updates
You can track the recovery using these official and community resources:
Roblox Status Page: status.roblox.com (Look for “Service Disruption” or “Active Incident”).
DownDetector: downdetector.com/status/roblox (To see if reports are dropping).
The “Service Instances Unavailable” error you are seeing is part of a larger outage that is explicitly affecting DataStores (the system that saves your data).
Why it is Unsafe
DataStore Failure: Reports confirm that the backend APIs responsible for saving player data are failing.
Active Data Loss: There are confirmed reports of live games failing to retrieve old saves or—worse—overwriting your good save files with “empty” or corrupted data because the server thinks you are a new player.
Studio Risk: If you are a developer using Roblox Studio, do not attempt to publish or save your game to the cloud right now; you could corrupt your own game files.
Recommendation
Do not play progression-based games (like RPGs, Tycoons, or Simulators) until the status clears. If you absolutely must play, stick to “minigame” style experiences where saving doesn’t matter (e.g., simple obbys or round-based shooters).
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