Error Code 279 Roblox | How to Fix

Error Code 279 in Roblox is a generic connection error, usually accompanied by the message “ID=17: Connection attempt failed.” Your security software might be blocking the Roblox client from “talking” to the game server.

As of today, March 24, 2026, there are no widespread official server outages reported by Roblox, though some users in the U.S. and Europe have noted intermittent “Error 2” and “ID=17” issues over the last 24 hours.

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## Common Causes

• Slow Internet: Your connection speed may be dropping below the required 4–8 Mbps.

• Firewall Interference: Your security software might be blocking the Roblox client from “talking” to the game server.

• Large Game Files: If you are trying to join a massive experience (like a highly detailed RP world), the connection may time out before the assets finish loading.

• Stale DNS Cache: Your computer might be trying to reach an old or non-existent server IP.

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## How to Fix It (2026 Updated)

1. The “Quick Refresh”

• Restart your router: Unplug it for 30 seconds. This is the #1 fix for Error 279 as it clears local IP conflicts.

• Switch Connections: If you’re on Wi-Fi, try a wired Ethernet cable or a mobile hotspot to see if the error persists.

2. Whitelist Roblox in Windows Firewall

1. Open Windows Defender Firewall from your Start menu.

2. Click “Allow an app or feature through Windows Defender Firewall.”

3. Find Roblox in the list and ensure both Private and Public checkboxes are ticked.

3. Change Your DNS Settings

Sometimes your ISP’s default DNS is slow. Switching to Google’s Public DNS often bypasses connection timeouts:

• Preferred DNS: 8.8.8.8

• Alternate DNS: 8.8.4.4

4. Clear Roblox App Data (PC/Mac)

If the error happens on every game you join, your cache might be corrupted:

1. Press Win + R, type %localappdata%, and hit Enter.

2. Find the Roblox folder and delete it.

3. Reinstall the client from the official site.

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## Server Check

If none of these work, the issue might be a specific game server that crashed. Try joining a different experience. If you still can’t get in, check the Official Roblox Status Page to see if a localized outage is affecting your region.