Hung connections on WIZ5100

A Wiz5100 can handle 4 connections at once but occasionally connections don't close properly and stay open (for various reasons) and the module hangs, requiring a restart. This is inconvenient, especially for remote devices.

SurferTim wrote a webserver that closed down sockets that were unused for a certain period of time, thereby keeping the webserver going though hung connections would occur from time to time, however his code no longer works on current versions of the Ethernet library.

Does anyone know whether the current library has any facility for dealing with hung connections or have code for closing those connections?

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