I have installed VS2017 on a windows machine and Xamarin.ios on other MAC machines. Is it possible to connect VS2017 from windows machin to Mac agent of MAC machine.
Yes. You can connect from visual studio to the mac agent as long as the 2 machine are on the same network. You can refer to HERE for the guide to setup the connection. It is for VS2015 but should be the same for VS2017.