Roblox Error Codes: The Complete Index
A plain-English index of every Roblox error code you are likely to see, what each one really means, and the specific fix that resolves it — grouped so you can find yours in seconds.
The short answer
Roblox error codes fall into four families. Codes in the 260–280 range are connection and kick errors, 400–529 are server-side or permission errors, 600–773 are join and teleport failures, and low numbers like 6 and 17 are client startup failures. The fastest route to a fix is to identify which family your code belongs to, because every code within a family shares the same handful of root causes.
Verified and last updated August 11, 2026.
- Time needed
- 10 min
- Difficulty
- Beginner
- Read time
- 9 min
Roblox tells you a number and nothing else. That is the whole user experience: a grey screen, a four-digit code, and a Leave button.
I have spent a lot of time in the Roblox client — building in Studio, testing codes on live accounts, and reproducing reader-reported bugs — and the useful thing I have learned is that the codes are far more structured than they look. They cluster into families, and every code in a family shares a root cause with its neighbours.
So the fastest way to fix yours is not to search the exact number. It is to work out which family it belongs to.
Key takeaways
Before you look up your code
Two checks, both faster than reading this article.
Check status.roblox.com. During a platform incident, every code becomes meaningless — you will get connection errors no matter what you do, and no local fix will help. Roblox has genuine outages more often than people assume.
Check whether it is one game or all games. This single distinction eliminates about half of the possible causes. If one experience drops you while everything else on Roblox is fine, the problem is that experience's servers or scripts, and there is nothing on your machine to fix.
A faster diagnostic than any of this
Tether your PC or console to your phone's mobile data and rejoin. If the error disappears on mobile data, the cause is your home network — router, DNS, ISP or firewall — and you can skip every client-side fix in this index.
Connection and kick errors: 260 to 280
This is the family you are most likely to be here for. Every code in it means the client and the server stopped being able to talk to each other, and the differences between them are about when that happened.
The shared fixes for this whole family, in the order that resolves the most cases:
- Flush your DNS cache (
ipconfig /flushdnsin an elevated Command Prompt), then restart. - Delete the contents of
%localappdata%\Roblox\LocalStorageand thelogsfolder. - Open Windows Defender Firewall and confirm every Roblox entry has both Private and Public ticked. This one is missed constantly.
- Turn off any VPN, proxy or DNS filtering for one test session.
- Switch to a public DNS resolver —
1.1.1.1or8.8.8.8.
If you are on 277 specifically, the dedicated 277 guide walks through all of that with screenshots of where each setting lives. For 279, the 279 guide covers the port-range problem that causes most of them.
264 and 273 are not bugs
If you see 264 or 273, Roblox is telling you the truth: your account is signed in somewhere else. A phone left on the Roblox app in a pocket is the usual culprit, and a sibling using your account is the second most common. Sign out everywhere from the Roblox website, change your password if it was not you, and enable two-step verification.
Server, permission and HTTP errors: 400 to 529
These are the codes where the honest answer is often "you cannot fix this". They come from Roblox's web infrastructure rather than the game client.
524 is the one worth its own explanation. It means the place you are trying to enter is restricted — a private server whose link has expired, a VIP server you were removed from, a game set to friends-only, or an experience with an age restriction your account does not meet. If you genuinely should have access, get the owner to re-issue the private server link, because those links do expire silently. Our 524 guide covers the age-verification case, which trips up a lot of accounts after a birthday correction.
403 is the one people misdiagnose most. It looks like a ban. It is not. It is a rejected authentication token, and the usual trigger is a VPN, a proxy, or a browser holding a stale Roblox cookie. The 403 walkthrough has the full sequence.
Join and teleport failures: 600 to 773
The 77x codes are developer-side problems in almost every case. A game that teleports you between lobbies and matches has to handle the case where the destination is full or shutting down, and plenty of experiences do not. If you see these repeatedly in one game, it is worth posting in that game's Discord — the developer usually does not know.
Client startup failures: single and double digits
901 and 103 on Xbox
Both codes come from Xbox privacy settings, not from Roblox. Go to your Microsoft account privacy settings, find Xbox privacy, and set "You can join multiplayer games" and "You can communicate outside of Xbox Live" to Allow. If the account is a child account, the change has to be made by the parent account. This catches out a huge number of people because nothing in the Roblox error message hints at Xbox settings.
The fixes that work across almost every code
After enough of these, the same short list keeps resolving things regardless of the number on screen.
What works
What doesn't
When to stop troubleshooting
There is a point where continuing costs you more than the problem does. Stop and wait if:
- status.roblox.com shows an active incident. Nothing you do matters until it clears.
- Every device on your network fails identically. That is an ISP or platform issue, not a client one.
- The code is 500, 503, 525 or 529. These are Roblox's own infrastructure telling you it is having a bad day.
- One game fails and everything else works. It is the developer's problem. Try again after their next update.
If you are getting connection errors and the game runs badly when it does connect, the network side is worth fixing properly rather than patching around — our guide to lowering ping covers the changes that measurably help, and the ones that do not.
Frequently asked questions
Why does Roblox show a number instead of telling me what is wrong?
The codes come from Roblox's internal networking layer, which reports a failure class rather than a human-readable cause. A single code such as 277 can be triggered by a dozen different underlying problems, so Roblox reports the class and leaves the diagnosis to you. That is exactly why an index like this is useful — the number narrows the search space enormously even though it does not name the cause.
Do error codes mean the same thing on console and PC?
Mostly, but not always. The connection codes in the 260–280 range behave identically across platforms. Codes 901 and 103 are Xbox-specific and relate to privacy settings on your Microsoft account rather than to Roblox itself. Mobile clients occasionally surface a generic 'connection lost' message where the desktop client would give you a numbered code.
Which Roblox error codes mean I have been banned?
None of them, strictly speaking. 267 and 268 are kicks from a specific experience, usually triggered by that game's own anti-cheat script rather than by Roblox moderation. A genuine account ban is not delivered as a numbered error — you get a message on the Roblox website when you log in, stating the duration and the reason.
Is there a way to see the real error behind the code?
Yes. The Roblox client writes logs to %localappdata%\Roblox\logs. Open the most recent file after an error and search for the words 'disconnect', 'failed' or 'error'. The lines around a failure often name the actual subsystem that gave up, which is far more specific than the code shown on screen.
Should I reinstall Roblox when I get an error code?
Almost never as a first step. Reinstalling takes twenty to forty minutes and fixes the same corrupted client files you can clear in about thirty seconds by deleting the contents of the LocalStorage folder. Reinstalling is the right move only when the client will not launch at all, which is a small subset of codes.
About the author
Roblox & Live-Service Editor
Priya started scripting in Roblox Studio at fourteen and has since published three experiences, the largest of which passed 1.2 million visits. That background is why our Roblox coverage explains why a code fails rather than just telling you to try again later.
Found something wrong? Games patch and fixes go stale. If a step here no longer works, tell us at hello@spyld.com and we will retest it. Read how we test and our editorial policy.