Problems wint NW Server 7.4.2 and NWClient 7.5.3 in W2008 R2

This is not an eror at all so there is no need for solution.  Here is the explanation.  On server, in configuration, you have definition of clients.  Let's say your win2k8 client is called win2k8box.  As you know, and soon you will see that you have too, you can have multiple client definitions for the same client.  You can see that as logical client instances.  Let's say you have them too.  In client list you will see win2k8box defined twice for example and the only difference might be save sets or perhaps retention period.  When server initiated backup runs it knows which one to use as it is assigned to group, group might be linked to pool, etc.  When you run it from client, nsrexecd contacts server and says "Hello... I'm win2k8box, do you know me?" and server checks it.  Then servers finds it, but twice in this case and it says "Hey, I find you more than once, will use 1st logical instance for further relationship discovery".  And that's what you see.  So, this is not an error, but simple info message.  Of course, you can dive deeper and say "ok, but if I use different tretentions on these two logical clients (which are the same box), which one is the first since I do not specify retention in save command - what does NW see as first"... The answer is that first instance is not used here to determine retention, but in case you have different retentions then the longer one will be used.

Thanks for your explications.