Client-side Kendo Filter Doesn't Work

[jwize]

Here is my code:

@(Html.Kendo().Grid(Model.Available).Name("s").DataSource(d => d.Ajax()).Filterable())
or
@(Html.Kendo().Grid().Name("s").DataSource(d => d.Ajax()[read data ...]).Filterable())



The grid displays information fine but it does not filter when I use the funnel filter icon or when I add my own custom filter. 
I am sure this is straight forward but I can't find the answer. 

[jwize]

Seems I have to set Ajax().ServerOperation(false) and things work fine again.