Visual studio 2015 cannot include Networking

Hi, i have a problem with visual studio. It cannot include. I edited Build.cs, so UE editor can compile code. But i have lot of errors in Visual studio. I dont care that much about errors, but it also dont show “documentation”. For example i use BoundToAddress() but it dont show, what parameters it needs, so i have to go to official docs and find it there.

This is because VS Intellisense is very slow with UE4 and UE4 is really big. Try installing Visual Assist X. http://www.wholetomato.com/

There is answer.
Thank you ItsaMeTuni for answer, that it is Intellisense problem.