We're experiencing a puzzling situation where wireless Dell thin clients are taking an extended time to boot due to delays in interacting with the FTP server. Each time a thin client boots, it retrieves 6 files from an onsite FTP server. This process takes <2 seconds on the wired network but closer to 25 seconds on wireless (both clients on the same VLAN / IP space). A packet capture at the AP reveals that each time the client starts the 3-way handshake, it sends an FTP SYN packet to the server that isn't being ack'd. The client re-transmits the FTP SYN 3 seconds later and receives the ACK immediately this time, then goes about it's business of completing the FTP transaction. This process repeats 6 times (6 files to be retrieved) and each time the initial FTP SYN packet is lost and each time the FTP SYN retrans 3 seconds later is ack's immediately. These 6 @ 3-second delays between retransmissions add up to 18 seconds of additional time (plus overhead) it takes for a wireless thin client to boot. But my concern isn't so much the 18 seconds as it is the thought that the loss of the first FTP SYN packet every time is a symptom of a bigger underlying problem. This is a 7200 master/local environment with AP-225's running 6.4.4.16. Any thoughts?