"Failed to connect to the Game" - This connection error prevents you from joining game servers. Here's how to fix it on Windows 10 and Windows 11.
Error Code 279 occurs when your computer cannot establish a connection to Roblox game servers. This is a network-related issue that can be caused by firewall blocks, DNS problems, ISP restrictions, or server-side issues.
The full error message usually reads: "Failed to connect to the Game. (ID = 17: Connection attempt failed)" or similar. Sometimes it appears with ID = 146 or other connection failure codes.
Looking for a Roblox Error 279 fix? This connection failure is network-related and usually indicates that your computer cannot reach Roblox game servers due to firewall restrictions, router configuration issues, or DNS problems preventing proper server resolution.
Some users see "connection failed ID 17" which is related to the same root cause as Error 279. Both error codes indicate that the initial connection handshake between your client and the game server failed. The ID number simply represents different stages of the connection process where the failure occurred.
Error 279 and connection ID errors share similar troubleshooting steps: checking firewall settings, resetting network configuration, verifying DNS servers, and ensuring Roblox ports (49152-65535) are not blocked by your router or ISP. In most cases, the issue is on your local network rather than Roblox's servers.
First, verify that Roblox servers are online. If servers are down, Error 279 is expected and you'll need to wait.
Visit: status.roblox.com
If there's an outage, wait for Roblox to resolve it.
Flush your DNS cache and reset network configuration to fix connection routing issues.
Open Command Prompt as Administrator:
ipconfig /flushdns
ipconfig /release
ipconfig /renew
netsh winsock reset
netsh int ip reset
Restart your computer after running these commands.
Windows Firewall may be blocking Roblox connections. Add Roblox to the allowed apps list.
1. Open Windows Security > Firewall & network protection
2. Click "Allow an app through firewall"
3. Click "Change settings" then "Allow another app"
4. Browse to: %localappdata%\Roblox\Versions\
5. Select RobloxPlayerBeta.exe
6. Check both Private and Public networks
More details: Firewall & Antivirus Blocking Guide
VPNs and proxy servers often interfere with Roblox connections and can cause Error 279.
1. Disconnect from any VPN service
2. Check proxy settings:
Settings > Network & Internet > Proxy
Turn off "Use a proxy server"
3. Restart your browser and Roblox
Your ISP's DNS might be slow or blocking Roblox. Switching to Google or Cloudflare DNS often fixes connection issues.
1. Open Network Connections (ncpa.cpl)
2. Right-click your connection > Properties
3. Select "Internet Protocol Version 4" > Properties
4. Select "Use the following DNS server addresses"
Google DNS: 8.8.8.8 and 8.8.4.4
Cloudflare DNS: 1.1.1.1 and 1.0.0.1
Sometimes Error 279 is specific to one game server. Try joining a different game to test if it's a widespread issue or game-specific.
1. Go to roblox.com
2. Try joining a popular, well-maintained game
3. If it works, the original game's servers may be having issues
4. Wait and try the original game later
A full network hardware restart can resolve many connection issues.
1. Turn off your computer
2. Unplug your router and modem from power
3. Wait 30 seconds
4. Plug modem back in, wait for lights to stabilize
5. Plug router back in, wait for lights
6. Turn on computer and try Roblox
If the basic fixes above didn't work, try these advanced solutions for persistent Error 279 issues.
Roblox uses UDP ports 49152-65535. Configure your router to forward these ports.
Protocol: UDP
Port Range: 49152-65535
Forward to: Your PC's local IP
Access router settings at 192.168.1.1 or 192.168.0.1
Large MTU values can cause packet fragmentation and connection failures.
1. Open Command Prompt as Admin
netsh interface ipv4 set subinterface "Wi-Fi" mtu=1400 store=persistent
(Replace "Wi-Fi" with your connection name)
Try values between 1400-1492 if default doesn't work.
Some ISPs throttle or block gaming traffic. Test with mobile hotspot to confirm.
Test: Connect via mobile hotspot
If it works: Contact ISP about restrictions
Solution: Request gaming priority or switch plans
School/work networks often block game traffic.
IPv6 configuration issues can cause connection problems with Roblox.
1. Open Network Connections (ncpa.cpl)
2. Right-click connection > Properties
3. Uncheck "Internet Protocol Version 6"
4. Click OK and restart
Re-enable if it doesn't help.
Want to try all common fixes at once?
🔧 Universal Roblox Fix GuideCheck our homepage for the automated repair script that can fix network issues automatically.
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