Async Sockets: Where is the block?

[FullmetalPride]

So, I have this handy-dandy code right here..

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..but somewhere along the line the code blocks, and it doesn't accept new connections. I'm not sure what I'm doing wrong. It works perfectly, otherwise, but concurrent connections don't seem to be going through. It doesn't even appear to be listening, either, because I only see packets for the first client connection in Wireshark.

 

[FullmetalPride]

Update: False alarm.

Issue was because I was binding to my LAN IP, and that caused some problems..