Failed client handling

On our ERA Server we sometimes get a bunch of error messages like:
"Error: "CCServiceRoutine(HandleClient): Failed client handling, code: 22 ((servername/clientname/clientmac address),
connection 'client ip addressort')""

On the server there is no additional informatie (no threats or event messages) regarding the client.

We are running server version: 3.0.105.
The clients are using 3.0.672

When it happens it happens for a lot but not all of our clients.

Can anyone help me resolving the issue or pointing to the cuase of the error?

Regards,

Bert Klomp

 

Have you tried the database compact and repair option? Tools -> Server Options -> Server Maintenance.

Also, you can try manually deleting the clients that throw the error (all instances of them, if necessary) and letting them report back in to create new records.