I have a ultrawbGrid in WebAsyncRefreshPanel. I am using viewtype as Infragistics.WebUI.UltraWebGrid.ViewType.Hierarchical. I have 3 bands in the grid. It has around 3000-4000 rows to be rendered at one time. 

The issue is that I am getting a timeout error and grid never loads. If data is less then it works fine.   I have increased the timeLimit  using getCBManager to 180000. Still it seems to timeout.

Is it an issue with amount of data or something else? Did anyone else face some issue like this?

Thanks!