Uploaded April 2022 | Updated September 2026, 2 days ago

---

A client reached out and said that some clients were able to connect to a secure application and others were not. Let's peek at the handshake and see what happened. (pcap used with permission)

Got questions? Let's get in touch.
LinkedIn: linkedin.com/in/cgreer
YouTube: youtube.com/c/ChrisGreer
Twitter: twitter.com/packetpioneer

== More On-Demand Training from Chris ==
▶Getting Started with Wireshark - bit.ly/udemywireshark
▶Getting Started with Nmap - bit.ly/udemynmap

== Live Wireshark Training ==
▶TCP/IP Deep Dive Analysis with Wireshark - bit.ly/virtualwireshark

== Private Wireshark Training ==
Let's get in touch - packetpioneer.com/product/private-virtual-classroom

//TLS Course from Practical Networking//
Want to go deeper into TLS? Check out my buddy Ed's course:
classes.pracnet.net/courses/practical-tls?affiliate=GJoShn

Links above contain affiliate links where I will receive a small amount for any goods purchased. I thank you for clicking because it really helps to support me!!

0:00 Intro
0:28 TLS Client Hello
1:36 Fatal TCP Error
2:04 TLS Protocol Versions
2:46 Why TLS 1.0?
3:37 Conclusion