Hi Guys   Need your expert advise. I have a site to site VPN via spoke-hub setup. Ping and traceroute results are optimal at less than 50ms from both sites. Internet works fine and fast but once it comes to accessing the file server via usual unc path or copying to & fro the files, the speed only hits 300kbps or even goes to 0 then spike up n stuck at 300kbps.   Did a pcap and saw re transmissions of [tcp dup ack] messages.   Anyone encounter such issue? strangely only this site having this issue. its lan(spoke) is all connected to the switch 2960 on 100Mbps while the hub where the destination file server is a a gigabit based environment.   Thanks for the help in advance ... View more