After installing and then repairing my VS2015 instance I still cannot get intellisense (server side) to work in my MVC views. I get alerted by message promp
This fixed it for me right away.
In Visual Studio:
Click Tools->Options->Text Editor->All Languages->General Uncheck "Auto list members" Uncheck "Parameter information" Check "Auto list members" (yes, the one you just unchecked) Check "Parameter information" (again, the one you just unchecked) Click OK