How to Fix Roblox Error Code 279 (ID 17)
Roblox error code 279 means the game could not connect to a server. Here is what causes it and the fixes that work on PC, Mac and mobile.
GUIDES
IceRants
11/10/20263 min read
By IceRants, founder & editor · Last updated: November 10, 2026
Error code 279 means Roblox could not connect you to the game server. The full message usually reads "Failed to connect to the Game. (ID = 17: Connection attempt failed.)". It is a connection problem, not a ban, and your account is fine.
Most of the time the fix is on your side: a shaky network, a firewall blocking Roblox, or an old copy of the app. Sometimes it is Roblox or the experience itself. Here is how to tell which, and what to do, starting with the quickest fixes.
Quick answer
Restart Roblox and your router, try a different experience, and switch to another network such as a phone hotspot. If it only fails on your home network, allow Roblox through your firewall and turn off any VPN. If nothing works, reinstall Roblox.
1. Check whether Roblox is down
Open status.roblox.com and look at the game join and player components. If there is an outage, wait it out. No setting on your device will fix a server problem.
Also try a second experience. If only one game throws error 279, the problem is probably with that experience, not with you. Busy or broken servers can fail to load even when your connection is fine.
2. Restart everything
It sounds basic, but it clears most 279 errors.
Close Roblox completely (on mobile, swipe it away from your recent apps).
Restart your PC, phone, or tablet.
Unplug your router or modem for about 30 seconds, then plug it back in.
Launch Roblox and try again.
3. Try another network
Connect to a phone hotspot or a different Wi-Fi network for a test. If Roblox works there, your home network is blocking or dropping the connection, and the next two steps are where to look. On PC, a wired Ethernet connection is also worth trying, since unstable Wi-Fi is a common cause.
4. Allow Roblox through your firewall and antivirus
Security software is one of the most common causes of error 279 on Windows.
Open Windows Defender Firewall from the Start menu.
Click Allow an app or feature through Windows Defender Firewall.
Find Roblox and tick the boxes for your networks. Click OK.
If you use another antivirus, add Roblox as an allowed app there too. Do not leave your protection switched off. Add an exception instead.
If you can access your router settings, Roblox's own support pages say it uses the UDP port range 49152 to 65535. Those ports should not be blocked.
5. Turn off your VPN or proxy
VPNs, proxies, and some school or work networks can stop Roblox from reaching game servers. Turn the VPN off and try again. If you are on a school or office network you do not control, you may not be able to fix 279 there at all.
6. Check browser extensions and date settings
If you launch games from a browser, update it, then disable ad blockers and other extensions for a test. You can also try a different browser like Chrome, Edge, or Firefox.
On any device, make sure the date and time are set automatically. A wrong system clock can break secure connections to Roblox.
7. Reinstall Roblox
If you get 279 on every network, reinstall the app.
On Windows, go to Settings > Apps, find Roblox, and click Uninstall.
Press Win + R, type %localappdata%, and delete the Roblox folder.
Restart your PC and download Roblox again from roblox.com.
On iPhone, iPad, or Android, delete the app and reinstall it from the App Store or Google Play.
Still stuck?
If the error shows up on several devices and networks, contact Roblox Support. Include your username, the exact error message, your device, and which fixes you already tried. Do not download "Roblox fixer" tools or modified clients. They do not fix 279 and can put your account at risk.
FAQ
Is error code 279 a ban?
No. It is a connection error. A ban shows a separate message that explains the moderation action.
Why do I only get error 279 in one game?
That usually points to the experience, not your connection. The game may have broken or overloaded servers. Wait a while or try again later.
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