Are you constantly being disconnected from Roblox with Error Code 279? This issue often appears with the message “ID = 17: Connection attempt failed.” It typically means there’s a problem connecting to the Roblox game servers — but the good news is, it’s usually an easy fix.

In this article, we’ll explore what causes Error 279 and give you 7 simple ways to fix it on your PC, phone, or console.
What is Roblox Error Code 279?
Error Code 279 is a network-related error that happens when your device can’t connect to a Roblox game server. This can result in:
- Games taking too long to load or failing entirely
- Sudden disconnections mid-game
- Inability to join specific Roblox experiences
Common Causes of Error 279
Several issues can trigger this error:
- Slow or unstable internet connection
- Firewall or antivirus blocking Roblox
- Outdated or problematic web browser
- Large games timing out during load
- Use of VPNs or proxies
- Roblox server-side issues or crashes
7 Simple Ways to Fix Roblox Error Code 279
1. Restart Your Device
Whether you’re using a PC, iPhone, Android, or Xbox — a quick reboot clears out glitches and may fix the issue instantly.
2. Restart Your Router
Unplug or power off your router for 10 seconds and turn it back on. Try connecting to Roblox again. If possible, use an Ethernet cable for better stability.
3. Check Firewall and Antivirus Settings
Your system might be blocking Roblox. Here’s how to allow it:
- Windows: Search for “Allow an app through Windows Firewall”, click Change settings, and add Roblox.
- Mac: Go to System Preferences → Network → Firewall → Options, then add Roblox as an exception.
4. Use a Different Browser
If you’re playing through a browser, try switching to Google Chrome, Mozilla Firefox, or Microsoft Edge. Also, update your browser and disable extensions that might block Roblox.
5. Switch to a Different Network
Try another Wi-Fi connection or use your mobile hotspot to test if your main network is the issue. This is especially helpful if Roblox only works on mobile data.
6. Check Internet Speed
Visit Google and search for “internet speed test.” Roblox may fail to load if your speed is too low or unstable. A consistent connection improves gameplay.
7. Reinstall Roblox
If none of the above works:
- Uninstall Roblox
- Delete leftover files (like from
AppData\Local\Roblox
on Windows) - Reinstall it fresh from the Roblox website or app store
If you’re using a browser, also clear your cache and cookies.
Extra Fixes That Worked for Others
- Change modem firewall from Strict to Moderate
- Use the Windows Compatibility Troubleshooter on the Roblox app
- Disable VPNs or proxies before launching Roblox
- Ensure you’re not trying to connect to a server that no longer exists
How to Prevent Error Code 279 in the Future
To avoid this error:
- Keep Roblox and your browser up to date
- Regularly clear your browser cache
- Avoid using VPNs or proxies while gaming
- Whitelist Roblox in your firewall or antivirus settings
Also, check Roblox Server Status at status.roblox.com if you’re unsure whether the problem is on your end.
Roblox Error Code 279 can be frustrating, but with these quick fixes and preventive tips, you’ll be back in the game in no time. If you’ve found a unique solution that worked for you, feel free to share it in the comments below.