Specific Players Unable to Join Specific Servers: (ID = 17: Connection attempt failed.) (Error Code: 279)

This bug seems to exist outside of what goes on within my game’s code and does not raise any TeleportInitFailed events and TeleportAsync returns without raising any exceptions Essentially, some players (seemingly a very small %) seem to be met with this error when joining particular servers. They never at any point fire the PlayerAdded event. This seems to happen for both the reserved servers and public servers which I use for matchmaking. If a reserved server is shut down and the same reserved server code is used to start it up again, the player is then able to connect. I am not certain, but at least all reported instances of this happening seem to be initiated when a player tries and fails to join the server. After that initial failure, all future attempts fail, even 12 hours or more after the fact. The only solution seems to be to restart the server. In my game, this is particularly devastating, as you are match-made into specific reserved servers depending on your player’s last location. Because of that, they are always reliably sent to the same reserved server and therefore can never play the game until that location’s server restarts for whatever reason. Because the problem is silent and can even prevent players from entering matchmaking servers, there is no possibility of a complete workaround. The best alternative would be to restart all servers every 24h, to at least limit the maximum effect this can have on these players. However, I think that would be a net negative change due to the disruption to gameplay for the majority of people who are fine.

My best guess, not knowing anything about the implementation, is that what is happening is that a player is marked as joining a server and is not unmarked as such after failure or when enough time has passed. This mark is what leads the joining process to reject them from joining the server to prevent duplicate joins on one server from the same account. Of course, I have no idea what I am talking about, but that theory is consistent with the behavior I am seeing.

I have not established a pattern for what unites the people this affects, as it has not happened to me. All I can tell is that it is rare and devastating. I have reports of it happening on both PC and mobile.

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Hi EcceDees,

Thanks for reporting this issue. I agree that there the current workaround is not ideal.

Would it be possible to provide the placeId experiencing this issue as well as playerIds that have experienced these failures?

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Thank you so much for the incredibly timely reply.

PlaceId: 13412842185

PlayerIds: 1061661636, 996169966, 566852802, 551448785

I did my posting completely backwards and I apologize, because I searched afterwards and I’m noticing there are several bug reports likely related to this same issue this month. At least they smell of it. Although, I think there is not yet a staff acknowledgement of the issue from what I can see, so maybe something good can come of my mistake. Apologies again.

Let me know if I can be of any more help.

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Do you have any client logs from the players/clients in question when this occurs? If you can share that with us via private messages that would help the investigation.

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Not yet but I will try to provision some for you all. [Edit: Sent one to both of you]

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Note for any people experiencing this issue, I am hearing reports that turning on a VPN will fix the issue so long as you leave it on. So perhaps using a different WiFi network or doing anything that changes your IP address is a way to get around the issue until Roblox fixes it.

Also I’m noticing that some people seem to get this issue repeatedly, but not always. Most people seem to never encounter it at all.

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Been getting this for the past few days, Also getting it in studio. Has destroyed my workflow and prevented me from updating on time. Can provide logs if needed.

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I initially thought this issue was rare, but now that I’m aware of it and pointed out the issue to my community, quite a few more people are now bringing up that they haven’t been able to join the game for a week and thought it was an issue on their end. I suppose they thought this because all the documentation and information online concerning this error code points to internet issues as the source, which under normal circumstances that would be true and the best course of action would be to “try later”. However, at this point it seems like this may be an iceberg issue troubling a decent fraction of all Roblox users this month.

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Not sure if its related, but I’ve been constantly getting this error message off & on when joining games and friends, and even being teleported between game places (ex. lobby and match). Had this for about a week and a half now and it sometimes blocks me from joining games for roughly 5 minutes.

I got the error again as I was writing this reply;

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