User753101303 posted
Hi,
I doubt IIS alone makes a difference. You changed the .NET version or it is a 32 vs 64 bits difference?
IMO take the time to see first what happens. Do you have an error message? Use F12 to see the generated markup and how it fails to achieve what you expect (for example the control is rendered correctly but JavaScript fails ???). The better you understand
what happens, the easier it is to fix the issue.