i have this issue when apply network protection rule: after the rule block a tagged file, all the following traffic is blocked. Before the transmission of tagged file all works!!! To unblock traffic i must restart the application client, in this case a ftp client.
1)before i can do anything in server ftp
2)i move the tagged file and it is block
3)after i can't connect to server (i'm blocked by the dlp agent).
4)restart the ftp client and all works again
5)go back to 2)...
I think it's something like connection append... or somethig similar.
You are seeig expected behavior.
Once a channel is compromised, it is considered to remain in that state until you reinitialize the channel (read restart the application).
If you would like to see a different result, please raise a FMR.