As I have seen similar cases a lot of time, in most cases it means that he is not interested anymore, or at least, no so enthusiastic about it as you want him to be. So instead of trying to find new ways to him. just move on. You can keep in touch with his reps once every two weeks, but check oth...
Just because two people are connected to each other on LinkedIn, doesn't mean that these two people have a strong connection to one another. So first, ask your Mentor directly whether (s)he knows this person well enough to make an introduction. Also, I'd suggest that instead of asking that th...