To ensure TekTelnet works correctly on Windows Server 2012 (and later), make the following modifications on the server's registry and restart the server:
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AFD\Parameters] "DefaultReceiveWindow"=dword:00002000 "DefaultSendWindow"=dword:00002000 Taken from the following link below: http://smallvoid.com/article/winnt-winsock-buffer.html
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