CISCO ASA5520 hardware firewall automatically prevents computers from accessing the Internet.

Clear local-host x.x.x.x//x.x.x.x is the ip of the disconnected machine.

Clear xlate local x.x.x.x // ditto.

If you don't know the ip of the other party, don't follow the ip parameters. Just call it quits and kill all the connections and conversion tables. This has the same effect as restarting the device and takes less time than restarting.

The reason for disconnection is that the connection limit of a single ip address has been reached, and it is not allowed to continue to establish new connections.

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It's not a problem to empty the list every time the network is disconnected. Give a radical solution:

Threat Detection Rate Connection Limit Drop Rate Interval 600 Average Rate 100 Burst Rate 400

Threat Detection Rate Connection Limit Drop Rate Interval 3600 Average Rate 80 Burst Rate 320

The above two commands are the default values of FW, which can be changed according to your own network environment and needs.