Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
I have this problem too, our ASA outside interface randomly stops passing traffic and stops replying to pings and drops all AnyConnect client sessions. This happens 2 - 3 times a day. Like you, we see the Arp entries in the ASA. Did you ever find a s...