279
Moderate
Roblox · Gaming
Connection attempt failed, usually caused by a firewall or antivirus blocking Roblox network traffic
Quick Answer
Error code 279 on your Roblox Gaming means: Connection attempt failed, usually caused by a firewall or antivirus blocking Roblox network traffic. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Temporarily disable your firewall and antivirus, then try rejoining the game
2
Add Roblox (RobloxPlayerBeta.exe) as an exception in your firewall and antivirus settings
3
Ensure UDP ports 49152-65535 are open on your router
4
Switch from Wi-Fi to a wired ethernet connection if possible
5
Try using a different network (such as mobile hotspot) to rule out network restrictions
6
If the issue persists, flush your DNS cache by running 'ipconfig /flushdns' in Command Prompt
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
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