THIS IS A TEST INSTANCE. Feel free to ask and answer questions, but take care to avoid triggering too many notifications.
Ask Your Question
0

Repeating frames indicating "Ignored unknown Record"

  • retag add tags

Forum, I am having issues wherein some of our users are getting disconnects from RDP sessions, and when that happens, they receive a graphical encryption error message from Windows. I ran a capture against one of the client connecting to the server in question. In the resultant trace file i keep seeing many recurring frames ( all are within TLS1.2 when filtered) over and over again.

Has anyone else seen this behavior before?

Thank you, KMNRuser

kmnruser's avatar
3
kmnruser
asked 2024-05-16 14:57:29 +0000
edit flag offensive 0 remove flag close merge delete

Comments

add a comment see more comments

1 Answer

0

"Ignored unknown Record" means Wireshark does not recognize the TLS record structure in the packet, this is usually seen when reassembly has been turned off in the protocol preferences, because TLS records spanning multiple packets will not be recognized any more. Have a look at the TCP and TLS protocol preferences to check your re-assembly settings (or create a new profile to get a default profile back).

This will most likely be benign and unrelated to the issue you're investigating...

SYN-bit's avatar
18.5k
SYN-bit
answered 2024-05-20 05:49:46 +0000
edit flag offensive 0 remove flag delete link
more

Comments

add a comment see more comments

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account. This space is reserved only for answers. If you would like to engage in a discussion, please instead post a comment under the question or an answer that you would like to discuss.

Add Answer