Cannot add client, client already exists error

sckennedy's picture

Howdy,
We have just set up XSAN (version 3/Mavericks) with 7 users.
All the users have joined the "Workgroup" by default and all work perfectly well.
We have an 8th client who we can mount as a computer in the XSAN share list, but we cannot add to "Workgroup". Both XSAN Admin (3.1) and Server (3.2.2) advise that user already exists, which is not the case.
We've attempted to remove the computer and add again with no luck.
Any pointers will result in beer.
Simon.