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Title sums it up nicely. This problem is odd though; I know it is not an issue with networking (so I've port forwarded correctly etc.) because I can run a vanilla server and everyone can connect fine. When I run my Tekkit Classic bukkit server though, I can connect via localhost but my friend gets "Failed to login; bad login" and my server log is

[INFO] /88.35.654.33 Lost connection

Server.properties is configured correctly, and I'm running in online mode.

What could be the problem?

  • try setting ur server to offline mode – Ender Nov 29 '13 at 3:25
  • @Ender what effect does that have? Surely I need it in online mode in order for people to connect from the outside? – imulsion Nov 29 '13 at 17:27
  • Negative, offline\online mode involves your server talking with the Mojang servers to find out if your players have an actual account and whatnot. More often than not 'bad login' is a result of this 'handshaking' process taking too long. Setting your server to offline mode does have its problems, however, if your only playing with friends that you know, these will not come up. I highly advise you DO NOT put your server in offline mode if it is a public server. – Ender Nov 29 '13 at 17:48
  • @Ender Thank you very much for the advice, it's a server for me and a friend to play tekkit on, so obviously there will be no issues with offline. I presume the problems with public servers are hacked accounts for griefers etc. so there will be no problems. Any more I should know about online/offline mode in my current circumstances? – imulsion Nov 29 '13 at 19:29
  • Other than the concept of 'hacked accounts' and people being able to theoretically login as 'other people' there are no other issues that I am aware of. And of course, for a private server, none of these issues are actually an issue. If it works come back and let me know and I'll post it as an answer for you to accept. – Ender Nov 29 '13 at 20:26
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Try putting your server in offline mode. Offline\online mode involves your server talking with the Mojang servers to find out if your players have an actual account and whatnot. More often than not 'bad login' is a result of this 'handshaking' process taking too long.

Setting your server to offline mode does have its problems however, it allows people with hacked clients to join your server, and it also allows people with some java knowledge to join your server posing as other players. This can lead to some severe griefing. That said, if your only playing with friends that you know then I don't think these issues will come up. I highly advise you DO NOT put your server in offline mode if it is a public server but other than that, it's worth a try.

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