Error Code 277 means the connection was lost between the Roblox client and the game server. Rejoin once, compare another experience, and test a different trusted internet connection; if the disconnect follows the device, use the matching platform refresh or reinstall below and verify that a new session stays connected.
1
Confirm the session was disconnected
Read the complete dialog and confirm Code 277 appeared after the experience had started. If Roblox never reached the experience in the first place, use the Error 279 / ID 17 workflow instead.
2
Rejoin and isolate the boundary
Select Reconnect if shown or reopen the experience once, then play a different known-working experience. Next test the same device on another trusted internet connection; this separates one game server, the original network, and the device.
3
Reinstall on Windows
If Code 277 follows the Windows 11 PC, open Control Panel > Programs > Programs and Features, right-click Roblox, and choose Uninstall or Uninstall/Change. Reinstall the official app and verify a new session remains connected.
4
Reinstall and check permission on Mac
In Applications, move Roblox to Trash or select it and press Command-Delete, then reinstall Roblox. If macOS blocks it, open Apple menu > System Settings > Privacy & Security and allow Roblox before starting a fresh session.
5
Refresh Roblox on iPhone or Android
Force-close Roblox from the recent-apps view and reopen it. If disconnects continue, remove Roblox and reinstall it from the App Store or Google Play, check that device date and time are correct, then test a new session.
6
Use the matching Fire OS or ChromeOS reset
For a session that disconnects on Fire OS, open Settings > Apps & Games > Manage All Applications > Roblox, choose Force Stop, and test a fresh session before reinstalling from Amazon. On ChromeOS, update ChromeOS, end Roblox in Task Manager, reboot, and reinstall through Google Play only if new sessions still drop.
7
Verify session stability or escalate
Success means the experience reconnects and remains playable without Code 277. If multiple experiences still disconnect on multiple trusted networks, record the code, device, OS, experience, time, and network tests for Roblox Support.
Video walkthrough
If it does not work
If only one experience repeatedly loses connection while others stay stable, report the exact time and server behavior to that experience's creator rather than repeatedly reinstalling Roblox.
If another trusted network prevents Code 277, contact the original provider or network administrator; do not disable the firewall, change registry values, or install a third-party repair utility.
If the device disconnects from other online services too, stabilize that connection first; a Roblox reinstall cannot repair a wider network outage.
ⓘ Sources and verification
Checked against official documentation on . Scope: Windows, macOS, iOS, Android, Fire OS, ChromeOS.
Roblox documents Error 277 as a lost client-to-game-server connection and provides separate recovery by operating system. The retained video is supplementary and may show older or Windows-only controls; use the written platform branch.
