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[4.7.4] fail to connect dedicate server on ios

Hi. I am developing an online game on mobile and use the dedicate server. Client run openlevel to connect the server.

Android is OK , but ios connect fail.

alt text

Error Message:

LogNetTraffic:Error UNetConnection::ReceivedPacket:ReceivedPacket : Received control close before open

I need help. :(

Product Version: Not Selected
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serverlog.log (20.5 kB)
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asked Apr 08 '15 at 09:59 AM in Bug Reports

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avatar image Ben Halliday STAFF Apr 09 '15 at 05:29 PM


Can you show us a screenshot of your graph or code setup you're using to connect the Client to the Server? Thanks!

avatar image FilterGame Apr 10 '15 at 03:38 AM

Thank you for your reply :)

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12.png (227.2 kB)
avatar image wittlief ♦♦ STAFF Apr 23 '15 at 05:10 PM


I just wanted to let you know that we have not forgotten about you, there's just been a lot of internal discussion about how best to setup and then solve your particular issue. Hang tight just a bit longer and hopefully we should have you sorted. Thanks very much!

avatar image Ben Halliday STAFF Apr 23 '15 at 10:41 PM


I was able to run a simulated dedicated server on Windows and connect with an iPad using the same method (passing the server's IP and Port to Open Level on the client side). Looking at your log, it says the LocalNetworkVersion and the RemoteNetworkVersion are different. Are you packaging for iOS and Windows at the same time, from the same machine? You might need to try deleting the previous packaged versions and repackaging.

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We haven't heard back from you in a while, so I'm resolving this post for tracking purposes. If you're still experiencing issues connecting your iOS app to a Windows dedicated server, please feel free to provide the information requested above, and we will continue investigating. Thanks!

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answered Apr 28 '15 at 04:47 PM

avatar image FilterGame May 07 '15 at 03:34 AM

Thank. I try angin is OK. :)

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