When you predefine data item with the server manager, you have to check a check box allowing more than one writers to the data item. Without that, your client can't work, because your server monitor vi claims that writer control. Since you seem to not predefine a data item on the server, you would have to use vi server or property nodes to allow multiple writers. I haven't yet looked for such property nodes, but I do remember that datasocket has very few methods and properties you can control. Basicly thay want you to predefine your data item.
hope it helps,
aartjan
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Seriously concerned about the Labview subscription model