How to Fix Roblox Error Code 277 on PC, Mac, and Mobile

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Roblox Error Code 277 means the game client lost its connection to a game server; it does not, by itself, prove that your internet connection is completely down. First check whether the problem affects one experience or several, then work through the fixes for your device and network. If only one experience repeatedly disconnects while others work, the experience itself may be at fault.

What Error Code 277 means

Roblox describes Error 277 as “Lost connection to the game server, please reconnect” and advises checking the internet connection. The error indicates that the app failed to establish or maintain a network connection to the game server. Roblox lists several possible causes, including inconsistent Wi-Fi, low bandwidth, firewall or security software, slow-loading or defective experiences, and excessive objects in an experience. Roblox’s Error 277 guidance and its general connection troubleshooting describe these possibilities.

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First determine whether the problem is the experience or your connection

1. Try another Roblox experience. If several experiences disconnect, troubleshoot the device and network. If one experience repeatedly fails while others work, the experience may have a bad script, too many objects, or another issue its creator must fix.
2. Try a different internet source. On a computer, connect to another internet source and see whether Error 277 persists. If it does, Roblox recommends contacting your internet service provider for further troubleshooting.
3. Check the connection path, not just the speed number. Roblox recommends at least 4–8 Mb/s for a single-use household, with larger households potentially needing more. That recommendation does not guarantee a successful Roblox connection: unstable wireless, blocked traffic, security software, or an experience problem can still cause a disconnect. See Roblox’s computer requirements and mobile requirements.

Fix Error 277 on Windows

Uninstall and reinstall Roblox

Roblox’s Error 277 article includes separate uninstall paths for older Windows versions, but its current PC requirements list only 64-bit Windows 10 and Windows 11 for installation. Windows 7 and 8.1 appear as legacy troubleshooting branches, not evidence of current support. Check Roblox’s current computer requirements before relying on those older instructions.

1. Windows 10: Open Start → Settings → Apps → Apps & features, select Roblox, then choose Uninstall.
2. Windows 11 64-bit: Search for Control Panel from the taskbar search field. Open Programs → Programs and Features, right-click or press and hold Roblox, then choose Uninstall or Uninstall/Change.
3. After uninstalling, press Win+R, type CMD, and press Enter to open Command Prompt.
4. Run these commands separately. When prompted by the second command, type y and press Enter:

cd AppDataLocal

rmdir /s Roblox

5. Restart the computer, then reinstall Roblox.

These are Roblox’s published Error 277 cleanup steps; deleting the local Roblox folder removes app data, so use them only after uninstalling as directed. The official Error 277 instructions provide the full path.

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Check firewall and security software

A firewall, antivirus, or antimalware product can interfere with Roblox. Roblox recommends opening the firewall’s control panel, finding its program-permissions section, locating Roblox, and allowing it unrestricted internet access. Security software may also need Roblox added to its allow list or may need an update. Use the instructions for your specific security product; do not disable protection permanently. Roblox’s firewall and router guidance explains the allow-list approach.

Check router UDP handling before changing ports

Roblox’s connection article gives UDP 49152–65535 as the current port range, while its firewall article says the client dynamically selects ports and may fail if a router blocks UDP packets on any port. Roblox does not prescribe one fixed port for every session, and its documentation does not support the commonly repeated claim that opening port 53640 is required. If you manage the router, check whether UDP traffic is being blocked and consult Roblox’s connection guidance and firewall and router guidance rather than forwarding a guessed single port.

Fix Error 277 on Mac

Roblox’s Error 277 article labels its Mac instructions for macOS 10.13 High Sierra and above; the current computer requirements likewise list macOS 10.13 or later. If the app is blocked by macOS permissions, open Apple menu → Preferences → Privacy & Security and enable permission for Roblox. Menu wording can vary by macOS version.

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Reinstall Roblox

1. Drag the Roblox app to Trash. Alternatively, select Roblox and press Command-Delete, or use Roblox → Move to Trash from the menu bar if that option is available.
2. Reinstall Roblox, then test the experience again.

On Mac, Roblox lists Chrome, Firefox, and Safari as supported browsers for its website. If a browser-based launch or loading step is failing, use an updated supported browser and try another of those browsers. Roblox also identifies browser extensions—particularly ad blockers—as a possible reason an experience fails to load fully. Sources: Error 277 instructions, computer requirements, and general connection troubleshooting.

Fix Error 277 on iPhone or iPad

Roblox currently supports iOS and iPadOS 14 or later. The Error 277 article still labels its iOS troubleshooting branch “iOS 12 and above,” but that older label does not replace the current mobile requirement. Check the current mobile requirements.

Restart and force-close Roblox

1. Hold the volume button and side button until the power-off slider appears.
2. Drag the slider, wait 30 seconds, then hold the side button until the Apple logo appears.
3. To force-close Roblox, press the Home key twice or swipe up from the bottom to view open apps, then swipe the Roblox app upward.

Check date and time, then reinstall if needed

Open Settings, find the device’s date-and-time settings, and make sure the date and time are accurate. The exact submenu varies by device and operating-system version.

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1. Press and hold the Roblox icon on the Home Screen.
2. Press the X over the app or choose the delete option, then confirm with Delete.
3. Open the App Store, search for Roblox, and reinstall it.

These recovery actions come from Roblox’s Error 277 instructions.

Fix Error 277 on Android

Roblox currently requires Android OS 8.0 or later and OpenGL ES 3.0 support. The Error 277 page’s “Android OS 6 and above” troubleshooting heading is older than the current mobile requirements.

Force-close and reinstall

1. From the Home screen, select the Recent key to open Recent Applications, then swipe Roblox sideways or select Close all.
2. If the error persists, open Settings → Application manager → Roblox Mobile App → Uninstall.
3. Reinstall Roblox from the Google Play Store.

Roblox recommends Wi-Fi rather than 3G/4G when mobile-network problems occur. Its Android steps and mobile connection guidance are in the Error 277 article and mobile requirements.

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Fix Error 277 on Amazon Fire

Roblox lists Fire 7 (9th generation), Fire HD 8 (8th generation), Fire HD 10 (9th generation), and Fire Max 11 (13th generation), or newer versions of those listed generations, as supported models.

1. Swipe down from the top of the screen and open Settings.
2. Choose Apps & Games → Manage All Applications → Roblox → Force Stop.
3. If the disconnect continues, reinstall Roblox through the Amazon Store.

These device and recovery details are in Roblox’s Error 277 instructions.

Fix Error 277 on Chromebook

Roblox lists Chrome OS version 53 or above with the Google Play Store enabled as the ChromeOS requirement. To close a stuck Roblox process, open Chrome’s three-line menu at the top right → More Tools → Task Manager, select the Roblox process, and choose End Process.

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Reinstall the app

1. Open Launcher → All Apps and locate Roblox.
2. Right-click Roblox and choose Remove from Chrome.
3. Confirm by selecting Remove.
4. Reinstall from the Google Play Store.

See Roblox’s computer requirements and Error 277 instructions.

Browser, operating-system, and unsupported-device checks

For the Roblox website, Roblox lists Chrome, Firefox, and Microsoft Edge on Windows, and Chrome, Firefox, and Safari on Mac. Use an updated supported browser, and try another supported browser if the current one has trouble. Browser add-ons, especially ad blockers, can prevent experiences from loading fully; temporarily test without the suspected extension to see whether it is involved. Roblox does not support Linux, virtual machines, or cloud-based computers. Sources: computer requirements and connection troubleshooting.

Fixes Roblox does not prescribe for Error 277

Roblox’s current Error 277 instructions do not provide a DNS-flush command, Winsock reset, registry edit, VPN recommendation, or specific DNS provider to use. Those suggestions circulate elsewhere, but they are not verified Roblox-prescribed steps for this error. Start with the documented device, app, network-source, and firewall checks instead.

When to contact Roblox or your internet provider

If the alternate-internet-source test still fails, Roblox recommends contacting your internet service provider. If the problem continues and you contact Roblox Support, provide the username, exact error message, device model, operating-system version, steps that reproduce the error, and any recent device or network changes. Roblox lists these details in its general connection troubleshooting guidance.

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