TCP Previous Segment Lost

[Mr. N00b]

Hi.

Wireshark displays this message when I view a network log of my program recorded with dumpcap.  Specifically, I receive this sequence:

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Server -> Client [TCP Previous Segment Lost PSH ACK]
Client  -> Server [TCP DUP ACK #1]
Server -> Client [PSH ACK]
Client  -> Server [TCP DUP ACK #2]
Server -> Client [PSH ACK]
Client  -> Server [TCP DUP ACK #3]
Server -> Client [ACK]
Server -> Client [TCP Retransmission]


It happens infrequently, but when it does, it causes problems with my receive buffer and data integrity, or so it seems. Does anyone know what causes it, and how to deal with it?