RPC error: RPC program or version mismatch; low version=305, high=305

Hi,

I am running Legato Networker V 7.6.4.5 on a Win2008-R2 server. The Legatio clients have the same version.

Suddenly, i get the following erro for a number of Legato clients:

olaf-client-227: index 39078: save: RPC error: RPC program or version mismatch; low version=305, high version=305

olaf-client-227: index 5777: save: cannot open save session with legato server olaf-server

I did not change the legato version on the serevr nor on the clients ?

Any idea how to solve this ?

Restarting the Legato services on the clients does not help.

Regards,

Johan