TCP Retransmission on Wireshark

[Ken Lee]

Hi

Currently my users are having some issues on slowness when connecting to the server. I did a sniff and attached is the traffic.

It is saying that the server IP is performing a TCP Retransmission to the client. Can I know is this means that the server is responding not in the timely manner to the client?

Thanks.

[Joseph W. Doherty · Accepted solution]

It means the TCP sender is not seeing ACKs that cover earlier transmitted packets in a timely manner.

[Ken Lee]

Hi Joseph

Thanks for your reply, noted on that.