Detailed analysis
Roblox Error 277 means your child got kicked from their game with the message "Disconnected: Lost connection to the game server." The fastest fix in most cases: close Roblox completely, restart it, and rejoin the same game. If it keeps happening, the problem is almost always your home internet connection, and this guide will walk you through fixing it step by step — no technical knowledge needed.
What actually happened
Roblox games run on servers (think of them like a host computer running the game for everyone). Your child's computer is constantly talking to that server over the internet — sending what their character is doing and receiving what other players are doing. Error 277 means that conversation got interrupted. Either the server stopped responding, your internet hiccupped, or the connection between the two got lost. Your child did not do anything wrong, and nothing is broken on their computer. This is a connection problem, not a virus or a hack.
Try this first (takes 30 seconds)
Close Roblox completely. Do not just click X on the game — right-click the Roblox icon in the taskbar at the bottom of the screen and click Close Window. Now open Roblox again and rejoin the same game. About half the time, Error 277 is a one-time hiccup on the game's server, and simply reconnecting fixes it. If your child can rejoin and play without getting kicked again, you are done.
If it keeps happening — check if Roblox itself is having problems
Before troubleshooting your home network, check if the problem is on Roblox's end. Open a browser and go to status.roblox.com. If there are yellow or red warnings, Roblox's servers are having a bad day and millions of kids are getting the same error. Nothing to do but wait — it usually gets fixed within an hour. You can also check downdetector.com/status/roblox.
If Roblox status looks fine — check your internet
Open a browser and try loading google.com. If it is slow or will not load, the problem is your internet, not Roblox.
Restart your router and modem. Find the box with blinking lights that your internet comes from. Unplug the power cable, wait 30 seconds (actually count), plug it back in, and wait 2 to 3 minutes for the lights to stabilize. Try Roblox again.
If your child is on Wi-Fi, that is likely the issue. Wi-Fi drops tiny amounts of data constantly — you do not notice it watching YouTube, but Roblox needs a steady connection. The best fix is plugging the computer directly into the router with an Ethernet cable (looks like a wide phone cord, costs a few dollars). This alone fixes Error 277 for a huge number of families. If Ethernet is not possible, move the computer closer to the router. Walls and microwaves weaken Wi-Fi. Try the 2.4GHz network instead of 5GHz if the router is far away — 5GHz is faster but has shorter range.
Close other things using the internet
Your home internet has limited bandwidth. If someone else in the house is streaming Netflix in 4K, on a video call, or downloading a game update, there may not be enough bandwidth left for Roblox. Ask other family members to pause streaming or downloads while your child plays. On the computer itself, close apps your child is not using — browser tabs, Discord, anything that uses the internet takes bandwidth away from Roblox.
If it only happens in one specific Roblox game
Some Roblox games are made by other players, and those games can have buggy servers. If Error 277 only happens in one game but other games work fine, the problem is with that specific game, not your internet. Try these steps:
Join a different server for that game. When your child clicks Play, they can sometimes see a list of servers — pick one with fewer players. Fewer players means less load on the server and fewer disconnections. If the game does not show a server list, clicking Play will put them on a random server, so just try a few times.
If a specific game always disconnects, it might be too demanding for the server (games with thousands of players in one server crash more often), or the game's developer may have a bug. Check if the game has a Discord server or a Roblox group where the developer posts updates — they might already know about the issue.
Clear Roblox's saved files
Sometimes Roblox saves temporary files that get corrupted and cause connection problems. To clear them: press the Windows key and R at the same time (this opens a small Run window). Type %localappdata%\Roblox and press Enter. A folder will open. Delete the logs folder and any folder that says cache. Do not worry — you are not deleting Roblox or any saved games. These are just temporary files that Roblox will recreate automatically.
Change your DNS server (slightly more technical but very effective)
DNS is like a phone book for the internet — it translates website names into numbers that computers understand. Your internet provider's default DNS server is often slow. Switching to a faster one helps Roblox connect more reliably. Click the Start button and type "Network Connections." Click "View network connections." Right-click your active connection (it will say Connected). Click Properties. Find "Internet Protocol Version 4 (TCP/IPv4)," click it, then click Properties. Select "Use the following DNS server addresses." Type 1.1.1.1 in the first box and 1.0.0.1 in the second box. Click OK on everything. These are Cloudflare's DNS servers — fast and reliable.
Reinstall Roblox as a last resort
If nothing else worked: open Windows Settings (click Start, then the gear icon). Go to Apps > Installed apps (or Apps & features on older Windows). Find Roblox in the list, click it, and click Uninstall. Once it is removed, open a web browser, go to roblox.com, log back into your child's account, and click Play on any game. It will prompt you to install Roblox again. This gives you a completely fresh installation.
School and public network problems
If your child is trying to play Roblox on a school network, library Wi-Fi, or other public internet, the network administrator may be blocking or throttling game traffic. There is not much you can do about this — school networks are designed to block gaming. The only workaround is using mobile data instead (a phone hotspot), which bypasses the school's network entirely. Be aware that Roblox can use a decent amount of data on a hotspot, so keep an eye on data usage if you have a limited plan.
Frequently asked questions
Q: Does Error 277 mean my child's account is banned?
A: No. Error 277 is a connection error, not a ban or moderation action. If your child were banned, they would see a different message about their account being moderated. Error 277 just means the internet connection to the game server dropped.
Q: My child keeps losing progress when they get disconnected. Is there a way to save?
A: It depends on the game. Most Roblox games save your progress automatically, but some only save when you leave properly (not when you disconnect). If progress is being lost, encourage your child to join games with a stable connection and to leave games through the menu instead of just closing the window.
Q: We have good internet — we can stream Netflix fine. Why does Roblox keep disconnecting?
A: Streaming video and online gaming work very differently. Netflix downloads chunks of video ahead of time, so a brief internet drop does not interrupt it. Roblox needs a constant, real-time connection with no gaps. Even a one-second internet drop that you would never notice on Netflix causes Error 277 in Roblox. This is why a wired Ethernet connection makes such a big difference — it eliminates the tiny Wi-Fi drops that ruin real-time connections.
Q: Error 277 started happening after a Roblox update. Is the update bugged?
A: Sometimes, yes. Roblox pushes updates frequently and occasionally one introduces connection bugs. Check downdetector.com/status/roblox and the r/roblox subreddit to see if many people are reporting issues after the update. If so, Roblox will usually fix it within a day or two.