Wireshark-users: [Wireshark-users] Retransmission because of no ACK from user

From: vincent paul <amoteluro@xxxxxxxxx>
Date: Sat, 15 Jan 2011 21:46:34 -0800 (PST)
Hi All,
 
I am looking at one trace with retransmissions from server because user's side did not send ACK for packets it received from server.  Is there any reason why user's side does not send out ACK.
 
Thank you for your help.
 
Regards,